Related Experiment Video

Updated: Sep 2, 2025

Point of Care Transcranial Color-Coded Duplex Ultrasound of the Middle Cerebral Artery
04:01

Point of Care Transcranial Color-Coded Duplex Ultrasound of the Middle Cerebral Artery

Published on: August 9, 2024

919

Correlation of Multidetector Computed Tomography Peripheral Angiography with Color Duplex Sonography in Peripheral

Rameshwor Devkota1, Birendra Raj Joshi2, Kamal Subedi2

  • 1Department of Radiology, Rapti Provincial Hospital, Dang, Nepal.

Journal of Nepal Health Research Council
|August 10, 2022
PubMed

Insights

Duplex imaging is a safe, cost-effective, and reliable method for evaluating peripheral arterial disease. It offers high accuracy, making it a valuable diagnostic tool for this increasingly common condition.

Area of Science:

  • Vascular Medicine
  • Diagnostic Imaging
  • Medical Technology

Background:

  • Peripheral arterial disease (PAD) prevalence increases with global population aging.
  • Conventional imaging modalities like arteriography, CT angiography, and MR angiography have limitations including invasiveness, cost, and contraindications.
  • Duplex imaging presents a cost-effective, widely available, and safe alternative, even for patients with renal impairment or contrast allergies.

Purpose of the Study:

  • To evaluate the diagnostic performance of duplex imaging for peripheral arterial disease.
  • To compare duplex imaging findings with multi-detector computed tomography angiography (MDCT) as the gold standard.

Main Methods:

  • A prospective cross-sectional study included 114 patients evaluated between November 2015 and October 2016.
  • Lower limb arteries were divided into 10 segments for comparison between Doppler ultrasound and MDCT.
  • Data analysis involved comparing stenosis and occlusion findings, with MDCT as the gold standard.

Main Results:

  • Duplex imaging demonstrated high diagnostic accuracy with sensitivity (94.94%), specificity (98.54%), and overall accuracy (97.54%).
  • A positive correlation was found between velocity ratio and the degree of partial occlusion (r=0.918 for the right lower limb, r=0.895 for the left).
  • Overestimation of complete stenosis occurred in Doppler assessment for partial stenosis identified by MDCT in 22 segments.

Conclusions:

  • Duplex imaging is a safe, cost-effective, and reliable method for evaluating peripheral arterial diseases.
  • The study confirms the high accuracy and utility of duplex imaging in PAD diagnosis.
Abstract

Keywords:
Computed tomography; doppler ultrasound; peripheral arterial disease.

More Related Videos

Reduction of Radiation Exposure during Endovascular Treatment of Peripheral Arterial Disease Combining Fiber Optic RealShape Technology and Intravascular Ultrasound13:48

Reduction of Radiation Exposure during Endovascular Treatment of Peripheral Arterial Disease Combining Fiber Optic RealShape Technology and Intravascular Ultrasound

Published on: April 21, 2023

1.6K
Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging09:32

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging

Published on: December 9, 2021

3.1K

Related Concept Videos

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
28
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
65
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
21
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
112
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests01:27

Atherosclerosis II: Clinical Manifestations and Diagnostic Tests

Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
34
Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
51