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Contrast-Enhanced Subharmonic Aided Pressure Estimation (SHAPE) Using Ultrasound Imaging with a Focus on Identifying Portal Hypertension
Published on: December 5, 2020
Duplex Doppler sonography in portal hypertension
Dijana Nićiforović1, Viktor Till, Dusan Hadnadev
1Institut za radiologiju, Klinicki centar Novi Sad, Novi Sad. jdijana@ptt.yu
Medicinski Pregled
|September 15, 2007
Summary
Duplex Doppler ultrasonography is a valuable noninvasive tool for assessing hepatic blood flow and diagnosing portal hypertension. This method effectively visualizes blood flow direction, velocity, and portal vein thrombosis, aiding in early diagnosis.
Area of Science:
- Medical Imaging
- Hepatology
- Vascular Ultrasound
Background:
- Hepatic blood flow measurement is crucial for diagnosing liver diseases.
- Noninvasive imaging techniques like echotomography and duplex Doppler ultrasonography are essential for evaluating liver circulation.
- Portal hypertension is a significant clinical condition requiring accurate diagnostic methods.
Purpose of the Study:
- To evaluate the diagnostic utility of duplex Doppler ultrasonography in patients with suspected or confirmed portal hypertension.
- To assess key parameters such as Doppler sonoscore, congestion index, and portal vein thrombosis.
- To determine the effectiveness of duplex Doppler ultrasonography as an initial diagnostic tool for portohepatic circulation.
Main Methods:
- A prospective study involving 50 patients with suspected or confirmed portal hypertension.
- Utilized Siemens Versa Pro with a 3.5 MHz convex probe for B-mode, color, and pulse Doppler examinations.
- Evaluated Doppler sonoscore, congestion index, and presence of portal vein thrombosis.
Main Results:
- Portal hypertension was confirmed at baseline in 10% of patients and at six-month follow-up in 6%.
- Duplex Doppler ultrasonography demonstrated its capability in visualizing blood flow direction and velocity.
- The method effectively identified the presence of portal vein thrombosis.
Conclusions:
- Duplex Doppler ultrasonography is an excellent noninvasive method for evaluating hepatic blood flow and diagnosing portal hypertension.
- This imaging modality is vital for assessing portohepatic circulation and detecting portal vein thrombosis.
- It serves as an effective initial diagnostic tool for portal hypertension syndrome.
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