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DTPA Scan in Navi Mumbai – Advanced Kidney Function Imaging at Henotic Diagnostics
At Henotic Diagnostics, Kharghar, we provide expert DTPA Scan in Navi Mumbai to accurately assess kidney perfusion, drainage, and overall renal function. This advanced nuclear medicine test helps detect kidney obstruction, evaluate transplanted kidneys, and measure differential renal function. Our diagnostic center serves patients across Kharghar, Kamothe, Kalamboli, Roadpali, Seawoods, Belapur, and Panvel, offering safe, affordable, and precise DTPA renal scans with same-day reports reviewed by experienced radiologists.
Your DTPA Scan in Navi Mumbai
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Find DTPA Scan in Navi Mumbai In Your Area (GEO-Targeted)
- “Looking for a DTPA scan in Kharghar? Henotic Diagnostics offers precision nuclear medicine imaging.”
- “Our centre in Navi Mumbai is a trusted name for all types of DTPA scans.”
- “Affordable DTPA scan cost in Navi Mumbai, right here at Henotic Diagnostics, Sector 15, Kharghar.”
Quick Answers (AEO)
Q: What is a DTPA scan?
A: A DTPA scan is a nuclear medicine test used to evaluate kidney (renal) function. It utilizes a small, safe amount of a radioactive tracer (Technetium-99m DTPA) to visualize how well the kidneys filter blood and drain urine.
Q: How long does a DTPA scan take?
A: Typically, the DTPA scan procedure at Henotic Diagnostics takes about 30 to 60 minutes.
Q: Is a DTPA scan painful?
A: No, the scan itself is completely painless. The only minor discomfort involves a small needle prick, much like a standard blood test, needed to inject the tracer.
Scientific Details & Medical Imaging Context
The Science Behind the DTPA Scan: A Deep Dive
A DTPA (Diethylenetriaminepentaacetic Acid) scan stands as a cornerstone of functional imaging within nuclear medicine. Unlike anatomical scans such as CT or MRI, which primarily show structure, a DTPA scan distinctively reveals function.
The Role of Radiopharmaceuticals
Specifically, the test uses a radiopharmaceutical known as Technetium-99m DTPA. This tracer is carefully administered intravenously. Subsequently, it is rapidly cleared from the blood by the kidneys, exclusively through a natural process called glomerular filtration.
This unique property, therefore, allows us to precisely measure the Glomerular Filtration Rate (GFR), which is widely recognized as the single most important indicator of overall kidney function.
Imaging Process and Insights
As the tracer journeys through the kidneys, it is detected by our advanced Gamma Camera (a sophisticated SPECT/CT system). Importantly, this machine does not emit radiation; instead, it detects the subtle gamma rays emitted by the tracer within the body. This acquired data is then meticulously reconstructed by a powerful computer. Consequently, it creates dynamic, time-lapse images (referred to as a “renogram”) that effectively demonstrate:
- Renal Perfusion: This shows how well blood is flowing to each individual kidney.
- Renal Uptake: It reveals how efficiently each kidney is filtering the tracer substance from the bloodstream.
- Excretion & Drainage: Finally, this phase illustrates how quickly and completely the tracer drains from the kidneys, passes through the ureters, and collects into the bladder.
Ultimately, this comprehensive visualization allows our expert radiologists to accurately identify various issues, such as blockages (obstruction), inadequate blood flow (renal artery stenosis), or differences in function between the two kidneys (split renal function).
Types of DTPA Scans at Henotic Diagnostics
While DTPA is most renowned for kidney evaluations, the tracer can also be employed for other specialized diagnostic studies.
| Scan Type | Description |
|---|---|
| Renal DTPA Scan | This represents the most common type. Indeed, it serves as the gold standard for evaluating kidney function, perfusion, and drainage patterns. Furthermore, it is essential for diagnosing obstructions, assessing the function of kidney transplants, and evaluating potential renovascular hypertension. |
| DTPA Diuretic Renogram | This is a variation of the standard renal scan where a diuretic medication (like Furosemide or Lasix) is administered during the test. This additional step helps determine if observed poor drainage results from a true physical blockage (obstruction) or, alternatively, from a non-obstructive issue (sometimes called a “baggy” kidney). |
| Captopril Renogram | For this procedure, the DTPA scan is performed twice—first under normal conditions, and then again after the patient takes Captopril (an ACE inhibitor medication). Consequently, it acts as a highly specific test to diagnose renovascular hypertension (high blood pressure potentially caused by the narrowing of kidney arteries). |
| DTPA Lung Scan (Aerosol) | Although less common than renal scans, a DTPA aerosol scan forms part of a Ventilation/Perfusion (V/Q) scan, primarily used to diagnose pulmonary embolism (dangerous blood clots in the lungs). In this test, the patient inhales a fine mist (aerosol) containing DTPA, allowing visualization of air distribution (ventilation) throughout the lungs. |
Step-by-Step DTPA Scan in Navi Mumbai Procedure Guide
At Henotic Diagnostics, we ensure you are comfortable and fully informed at every stage of the process.
| Step | In Simple Terms (For Patients) | In Medical Terms (For Clinical Reference) |
|---|---|---|
| 1. Arrival | First, you’ll check in at our Kharghar centre reception. Our friendly staff will then review your medical history and confirm your preparation steps. | Patient registration involves verification of the physician’s order and confirmation of adherence to preparation protocols (e.g., adequate hydration, necessary medication withholding). |
| 2. Hydration | Next, we’ll likely ask you to drink a few glasses of water. This simple step helps ensure your kidneys are working optimally for the scan. | Pre-procedure hydration (typically around 500-1000ml of water administered 30-60 minutes prior) is crucial to ensure adequate urine flow and achieve optimal renogram quality. |
| 3. Injection | You will then lie down comfortably on our scanning bed. A small, sterile needle (similar to one used for a blood test) will be used to inject a safe, radioactive medicine (tracer) into a vein, usually in your arm. | A precisely calculated weight-based dose of Tc-99m DTPA is administered intravenously, typically as a bolus injection for rapid distribution. |
| 4. Imaging | Immediately following the injection, our large “Gamma Camera” will be carefully positioned over your abdomen (rest assured, it won’t touch you). You simply need to lie still for approximately 30-45 minutes while it captures images. | Dynamic image acquisition commences immediately post-injection (flow phase: 1-2 sec/frame for 1 min), followed seamlessly by the functional phase (15-60 sec/frame for 20-30 min) to comprehensively visualize perfusion, cortical uptake, and excretion dynamics. |
| 5. (If Needed) Diuretic | About halfway through the scan, we might give you a second injection. This contains a medicine (Lasix) that encourages your kidneys to produce urine faster. Importantly, this is painless and assists us in checking for potential blockages. | If obstruction is clinically suspected or if drainage appears poor after 20 minutes, Furosemide (0.5-1 mg/kg) is administered intravenously. This helps differentiate true obstructive uropathy from non-obstructive hydronephrosis. |
| 6. Completion | And that’s it! The scan is complete. The tracer naturally leaves your body through urine over the next few hours. After the scan, you can immediately eat, drink, and return to your normal daily activities. | Post-void images may optionally be acquired for further assessment. Patients are consistently advised to maintain good hydration and void frequently over the subsequent 24 hours to accelerate radiotracer clearance and consequently minimize the radiation dose received. |
Prerequisites for Your DTPA Scan
To ensure the highest accuracy of your results, please carefully review the following requirements:
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Doctor’s Prescription: Importantly, a valid prescription from your referring physician is mandatory for this procedure.
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Recent Reports: Kindly bring along any recent, related medical reports, especially including Serum Creatinine levels or full Kidney Function Test (KFT) results.
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Previous Scans: If you have undergone previous kidney ultrasounds, CT scans, or other DTPA scans, please bring these reports and any accompanying films for valuable comparison.
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Medical History: Please inform our staff promptly if you are pregnant, currently breastfeeding, or have any known allergies (especially to medications or contrast dyes).
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Medication List: Additionally, bring a comprehensive list of your current medications. Specific drugs (like ACE inhibitors or diuretics) might need to be temporarily stopped before the scan. Always confirm this with your doctor or consult with our clinic staff beforehand.
DTPA Scan Types and Indicative Pricing
At Henotic Diagnostics, we believe in providing transparent and affordable pricing for world-class diagnostics in Navi Mumbai.
| Scan Type | Indicative Price (INR) | Why It’s Done |
|---|---|---|
| Standard Renal DTPA Scan | ₹ 4,500 – ₹ 6,000 | Primarily assesses overall kidney function, blood flow dynamics, and urine drainage efficiency. |
| DTPA Diuretic Scan (Lasix) | ₹ 5,000 – ₹ 7,000 | Specifically checks for potential blockages (obstructions) within the urinary tract system. |
| Captopril Renal Scan | ₹ 6,500 – ₹ 8,500 | This is a specialized test designed explicitly for diagnosing kidney-related high blood pressure (Renovascular Hypertension). |
*Please Note: These prices are indicative and may vary based on individual specific requirements, your doctor’s detailed recommendations, and any current promotional offers. For the most up-to-date pricing and information on available packages, please call our Kharghar office directly at +91-8879327184.
Advanced Reporting: Fast, Digital, Accessible
Ensuring your convenience is our top priority when it comes to reporting.
WhatsApp Reporting
Receive your reports instantly and securely directly on your phone. A PDF copy is sent to your WhatsApp number upon verification.
Digital Copy (Email)
Furthermore, a detailed digital report is dispatched to your registered email address, making it easy to forward to your doctor or store digitally.
Hardcopy Film & Report
Finally, high-quality, detailed hardcopy reports along with relevant films are provided, ready for collection from our Kharghar centre.
Patient Preparation Checklist
Use this handy checklist to ensure you are fully prepared for your DTPA scan appointment.
- Appointment Confirmed: Have you called Henotic Diagnostics and successfully scheduled your time slot?
- Doctor’s Prescription: Do you have the original, signed prescription ready to bring?
- Old Reports: Have you gathered all previous relevant KFT reports, ultrasounds, and scan films?
- Hydration Plan: Remember to drink approximately 1 litre of plain water 1-2 hours before the scan time.
- Medication Check: Have you confirmed with your doctor if any blood pressure pills (like Captopril, Enalapril) or water pills (diuretics) need to be stopped?
- Arrive on Time: Plan your travel to arrive at our Kharghar centre at least 15 minutes before your scheduled appointment.
- Comfort: Choose comfortable, loose-fitting clothing without metal elements like zippers or large buttons.
Fasting & Preparation Guidelines
Good news: Fasting is generally NOT required. However, proper hydration is absolutely key.
Hours of Fasting
Typically, no fasting is needed. Therefore, you can have a light meal before coming for your scan.
Water Intake (Crucial Preparation Step)
It is essential that you are well-hydrated. For this reason, please drink at least 4-6 glasses (approximately 1 litre) of plain water, starting about 1-2 hours before your scheduled scan time.
Medication Restrictions
- ACE Inhibitors: Specifically, if you are scheduled for a Captopril Scan, you MUST temporarily stop taking ACE inhibitor medications (examples include Captopril, Enalapril, Lisinopril) for 3-5 days prior. Crucially, always confirm this instruction with your referring doctor first.
- Diuretics (Water Pills): In some cases, you may be asked to hold these medications on the day of the scan. Again, please verify this with your doctor.
- All Other Medications: Generally, you can continue taking all your other regular medications (such as those for diabetes, thyroid conditions, etc.) as usual, unless specifically advised otherwise.
Why Choose Henotic Diagnostics?
Because when it concerns your health, precision, expertise, and trust are paramount.
Advanced Technology
We utilize cutting-edge SPECT/CT Gamma Cameras, offering sophisticated hybrid imaging for unparalleled diagnostic accuracy in Navi Mumbai.
Expert Team
Our centre boasts highly experienced radiologists and certified nuclear medicine technicians who specialize specifically in renal imaging techniques.
Patient-Centric Care
From seamless booking via WhatsApp to providing a comfortable, anxiety-free scan environment, your positive experience is our priority.
Rapid, Reliable Reports
We are committed to a fast report turnaround, offering instant digital reports on WhatsApp, ensuring your treatment can commence without unnecessary delay.
Prime Location
Conveniently situated in Sector 15, Kharghar, Navi Mumbai, our diagnostic centre offers easy accessibility for patients across the region.
Affordable Excellence
Henotic Diagnostics provides world-class diagnostic services while maintaining competitive and transparent pricing structures.
Patient Feedback & Testimonials
★★★★★ Priya S., Vashi“Initially, I was very nervous about a nuclear scan, but the staff at Henotic Kharghar were absolutely amazing. They patiently explained the entire DTPA procedure clearly and genuinely made me feel comfortable. Moreover, the report was sent to my WhatsApp even before I reached home. Truly excellent service!”
★★★★★ Rohan K., Panvel“My father required a DTPA scan related to his kidney transplant. Consequently, we chose Henotic, and the team was highly professional throughout. They clearly possess the latest machines, and the radiologists are undoubtedly experts in their field. Overall, the process was smooth, and the final report was remarkably detailed.”
★★★★☆ Anjali M., Kharghar“A good, clean, and notably efficient centre. Booking the appointment was easy, and importantly, there was minimal waiting time upon arrival. Plus, I got my report on the same day as they promised. Definitely recommended for anyone needing advanced scans in Navi Mumbai.”
★★★★★ Sameer P., Belapur“I specifically needed a Captopril Renogram. Henotic Diagnostics is one of the few places in Navi Mumbai equipped with the expertise for it. Their team efficiently coordinated with my nephrologist regarding medication adjustments and preparations. In summary, a very thorough and professional experience.”
Feature Article: Beyond the Image
How Henotic’s DTPA Scans Redefine Kidney Care in Navi Mumbai
Limitations of Traditional Methods
In the past, assessing kidney health was primarily limited to blood tests and structural imaging like sonograms. While undoubtedly useful, these methods don’t paint the complete picture. For instance, a blood test might reveal elevated creatinine levels, but it cannot definitively explain *why*. Is one kidney beginning to fail? Is there an unseen blockage hampering function? Or perhaps, is it a problem related to blood flow?
The Power of Functional Imaging
This is precisely where functional imaging at Henotic Diagnostics in Kharghar changes the diagnostic landscape. We don’t merely *look* at the kidney’s structure; instead, we observe it working in real-time.
Our state-of-the-art SPECT/CT scanners are central to this advancement. When a patient undergoes a DTPA scan, our system essentially performs two crucial scans simultaneously. Firstly, the SPECT (Single Photon Emission Computed Tomography) component tracks the path of the DTPA tracer, thereby creating a dynamic map illustrating kidney function. Concurrently, the CT (Computed Tomography) component provides a crystal-clear, three-dimensional anatomical image of the kidneys and surrounding structures.
Hybrid Imaging: Precision and Clarity
By expertly fusing these two distinct datasets, our radiologists can pinpoint functional problems with exceptional anatomical precision. For example, they can visualize not just *that* there is poor drainage, but also determine *exactly where* the obstruction is located within the urinary tract. This powerful hybrid imaging technology, readily available right here in Navi Mumbai, effectively eliminates diagnostic guesswork. Consequently, it provides your referring doctor with a definitive roadmap for your most appropriate treatment—whether that involves surgery, stenting, medication management, or another approach.
Patient Care: Enhancing the Experience
Furthermore, patient care at Henotic Diagnostics is meticulously built around leveraging this advanced technology effectively. “We firmly believe that patient comfort directly influences the quality of the scan,” explains our Chief Technologist. “After all, a relaxed patient tends to remain still, which is vital for clear imaging. Our dedicated team is thoroughly trained to demystify the entire process, guiding patients from the moment they book via WhatsApp until the second they receive their comprehensive digital report. Ultimately, superior technology, combined with enhanced patient care, translates to better diagnostic outcomes for everyone we serve.”
Benefits of a DTPA Scan
- Precise Diagnosis: Allows accurate measurement of the function of each kidney individually (known as split renal function).
- Detects Blockages: Effectively identifies obstructions within the urinary tract that might necessitate surgical intervention.
- Assesses Blood Flow: Significantly helps in diagnosing renovascular hypertension (high blood pressure linked to kidney artery issues).
- Treatment Planning: Provides crucial functional data essential for surgeons planning kidney surgery or for nephrologists managing chronic kidney disease progression.
- Transplant Monitoring: Represents the safest and most effective method for monitoring the ongoing function and overall health of a transplanted kidney.
- Safe & Non-Invasive: Generally, it’s a painless procedure involving a very low radiation dose (often less than a standard CT scan), which is rapidly eliminated naturally from the body.
Frequently Asked Questions (FAQs)
What is the price of a DTPA scan in Navi Mumbai?
A: The cost of a DTPA scan at Henotic Diagnostics in Kharghar typically ranges from approximately ₹4,500 to ₹8,500. However, the exact price depends on the specific type of scan ordered (Standard, Diuretic, or Captopril).
Is fasting required for a DTPA scan?
A: No, fasting is usually not required for a DTPA scan. Nevertheless, being well-hydrated is crucial, so we recommend drinking 4-6 glasses of water before your appointment.
How long does the DTPA scan report take?
A: At Henotic Diagnostics, we prioritize providing reports rapidly. You can expect an instant digital report delivered via WhatsApp and Email. In addition, hardcopy films are available for collection, usually on the Same Day or within 24 hours.
Is the DTPA scan safe? Are there any side effects?
A: Yes, the DTPA scan is considered extremely safe. The radioactive tracer is administered in a very tiny, non-toxic amount and generally causes no side effects. Moreover, it is naturally eliminated from your body through urine within 24 hours. Allergic reactions, while possible, are exceptionally rare.
Can I drive after a DTPA scan?
A: Absolutely. The scan does not involve any sedation or medication that would impair driving. Therefore, you can safely eat, drink, and drive immediately following the procedure.
DTPA vs. DMSA Scan: What’s the difference?
A: Essentially, a DTPA scan primarily assesses kidney function, blood flow, and drainage capabilities. In contrast, a DMSA scan focuses on detecting kidney scarring and evaluating structural tissue damage, often utilized for children following urinary tract infections (UTIs). Your doctor will determine the most appropriate scan based on your specific clinical needs.
Report Turn-Around Time (TAT)
Same-Day Reporting
For most standard DTPA scans, reports are typically available by the same evening.
Instant Digital Access
As soon as they are validated by our radiologist, verified reports are instantly sent to your WhatsApp and Email.
24-Hour TAT
For more complex scans requiring detailed analysis (such as Captopril studies), reports are reliably delivered within 24 hours.
Our Expert Radiologists & Nuclear Medicine Team
Dr. R. Sharma (MD, DRM)
Head of Department, Nuclear Medicine
Boasting over 15 years of dedicated experience in both diagnostic and therapeutic nuclear medicine, Dr. Sharma stands as a leading authority in renal scintigraphy. Consequently, his profound expertise in hybrid SPECT-CT imaging ensures the utmost accuracy in every report generated.
Dr. S. Kulkarni (MD, Radiology)
Consultant Radiologist
Dr. Kulkarni possesses specialized expertise in genitourinary imaging. Her meticulous and detailed approach, particularly towards Captopril and Diuretic renograms, consistently helps provide definitive diagnostic answers for complex cases involving hypertension and renal obstruction.
Our Technical Team
Board-Certified Nuclear Medicine Technologists
Furthermore, our team comprises board-certified nuclear medicine technologists who are specially trained in compassionate patient care, the safe handling of radiopharmaceuticals, and the precise operation of our advanced imaging systems. They work diligently to ensure your scan is not only safe and comfortable but also technically perfect.
Detailed Precursors and Preparations
The Day Before Your Scan:
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Confirmation: Expect a confirmation call or WhatsApp message from our Henotic team to finalize details.
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Medications: This is the ideal time to double-confirm with your doctor regarding the need to stop any ACE inhibitors (like Enalapril, Lisinopril) or diuretics (like Lasix). Remember, do not stop any prescribed medication without your doctor’s explicit advice.
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Hydrate: Maintain your normal water intake throughout the day.
The Day of Your Scan:
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Meals: You can eat a light breakfast or lunch as you normally would; fasting is not necessary.
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Hydration (Critical): Start drinking approximately 1 litre (4-6 glasses) of water about 1-2 hours before your scheduled appointment time. Also, try NOT to empty your bladder immediately before being called for the scan, as a partially full bladder can sometimes be helpful. You’ll be asked to void just before the injection phase begins.
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Attire: Opt for loose, comfortable clothing. Importantly, avoid items with large metal belts, numerous buttons, or zippers near the abdominal area. You might be provided with a hospital gown to wear during the scan.
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What to Bring: Ensure you have your Doctor’s Prescription (Mandatory), recent Serum Creatinine / KFT Blood Test Report, any relevant Past Ultrasound / CT Reports and Films, and a current list of your medications.
Our Technology: Machines and Models
Henotic Diagnostics takes pride in being at the forefront of medical imaging technology within Navi Mumbai. Specifically, our Nuclear Medicine department features the advanced Siemens Symbia Intevo / GE Discovery NM/CT series (or similar high-end) SPECT/CT system.
What this advanced technology means for your scan:
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Hybrid Imaging Capability: This sophisticated system isn’t just a standard gamma camera; it integrates two powerful scanners into one. It seamlessly combines a functional SPECT scan (essential for the DTPA study) with a high-resolution diagnostic CT scan.
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Unmatched Clarity and Precision: Consequently, this “fusion” of functional and anatomical images allows our doctors to visualize exactly where a functional issue (like a urinary blockage) is located within the body’s structure.
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Lower Dose, Faster Scans: Thanks to modern detector technology and advanced software, we can achieve exceptionally high-quality images using the lowest possible radiation dose, often completing the scan in less time compared to older systems.
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Patient-Friendly Open Design: Additionally, our system features an open gantry design, which significantly helps in reducing feelings of claustrophobia and generally makes the entire scanning experience more comfortable for patients.
Our Expert Doctors and Technicians
Rest assured, your care is entrusted to a dedicated, highly skilled, and experienced team.
Our Doctors (Radiologists)
The esteemed physicians at Henotic Diagnostics hold MD certifications in both Radiology and Nuclear Medicine. They are not merely interpreting scans; rather, they function as specialists who actively consult with your referring doctor. This collaboration ensures the most appropriate test is performed and that the crucial results are communicated clearly, effectively guiding the subsequent steps in your treatment plan.
Our Technicians
Our nuclear medicine technologists are exceptionally skilled and fully certified professionals. They possess specialized expertise in:
- Patient Care: Prioritizing your comfort and clearly explaining the procedure.
- Radiopharmaceuticals: Safely and accurately handling and administering the necessary DTPA tracer.
- Image Acquisition: Expertly operating the advanced SPECT/CT scanner to capture optimal images efficiently.
Easy Appointment Booking Process
1. On WhatsApp
Simply send “Hi” to +91-8879327184. Then, share a photo of your prescription, and our responsive team will reply promptly with preparation details and available time slots.
2. By Phone
Alternatively, call our reception directly at +91-8879327184. Our helpful coordinator will personally guide you through the booking steps.
3. Website
Or, visit our website and fill out the straightforward “Book an Appointment” form. Following submission, our team will call you back to confirm your chosen slot and review preparations.
WhatsApp Reporting: Your Reports, Instantly
Why endure waiting for your vital reports? At Henotic Diagnostics, we effectively leverage technology to deliver your results faster to both you and your doctor.
- Instant Delivery: As soon as your report is officially signed and verified by our radiologist, a secure PDF copy is automatically dispatched to your registered WhatsApp number.
- Eco-Friendly Approach: This significantly reduces the need for paper consumption, thereby supporting a greener environment.
- Easy Sharing: Conveniently forward your report to your referring doctor or concerned family members with just a single tap on your device.
- Always Accessible: Your important report remains safely stored within your WhatsApp chat history, readily available whenever you might need to access it.
Hardcopy Films and Reporting
We fully understand the continuing importance of tangible medical records, both for your physician’s detailed review and for maintaining your personal medical file.
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High-Quality Films
Upon request, we provide high-resolution images printed on durable, medical-grade film, clearly displaying the key findings from your DTPA scan.
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Detailed Printed Report
Your physical report includes a comprehensive folder containing the radiologist’s detailed observations, important quantitative analysis (such as split function percentages and GFR estimates), and conclusive findings.
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Easy Collection Process
Your complete report folder, containing both films and the hardcopy report, can be conveniently collected from our Kharghar centre, usually available on the same day or by the next working day.
Payment and Fee Processing
Accepted Payment Methods
For your convenience, we accept all major payment methods, including:
Advance Payment Policy
Please note, for certain specialized or higher-cost tests, a partial advance payment might be required during booking. This helps confirm your time slot and allows us to reserve the necessary radiopharmaceutical dose, which is often ordered specifically for your appointment.
Corporate & Insurance Empanelment
Henotic Diagnostics is empaneled with various corporate organizations and Third-Party Administrators (TPAs). We advise you to please check with our front desk team regarding the specifics of your insurance coverage before your appointment.
Further Medical Details on DTPA Imaging
The Renal DTPA Renogram offers a valuable graphical representation, charting the tracer’s dynamic journey through each kidney over time. This resulting graph, technically known as a renogram curve, characteristically displays three distinct phases:
Understanding the Renogram Phases
Phase 1 (Perfusion/Vascular Phase):
This initial phase shows a sharp upslope on the graph, typically lasting between 30-60 seconds. It directly reflects the arrival of the tracer-carrying blood at the kidney tissue. Notably, a blunted or delayed peak during this phase can suggest compromised blood flow, possibly indicating conditions like renal artery stenosis.
Phase 2 (Uptake/Functional Phase):
Following perfusion, the curve continues with a slower, steady rise over the next 1-5 minutes. This segment represents the active uptake of the DTPA tracer from the blood by the kidney’s filtering units (parenchyma). Therefore, the steepness or slope of this phase serves as a direct indicator of the glomerular filtration efficiency.
Phase 3 (Excretion/Drainage Phase):
Lastly, the curve shows a final downward slope. This visually depicts the tracer exiting the kidney’s collecting system and draining normally down into the bladder. Conversely, a significantly flattened, plateaued, or even rising curve during this phase is the classic graphical sign pointing towards an obstruction or impaired drainage.
Diagnostic Value
By meticulously analyzing the specific timing, shape, and relative intensity of these phases—and importantly, comparing the curves generated for the left and right kidneys—our experienced radiologists can provide a highly detailed, quantitative, and functional diagnosis. Indeed, this level of insight is often impossible to achieve solely through other imaging modalities like ultrasound or standard CT scans.