Related Experiment Video
Updated: Dec 28, 2025
A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis
Published on: June 2, 2015
Inferior vena cava obstruction in Budd-Chiari syndrome: a comparative study of rapid quantitative phase-contrast MRI
Xin Lu1,2,3, Xijuan Ma2,4, Kai Xu3
1Department of Radiology, BenQ Medical Center, Nanjing Medical University, 71 Hexi Avenue, Nanjing, 210019, Jiangsu, China.
Purpose:
The purpose of this study was to analyze inferior vena cava (IVC) obstruction in Budd-Chiari syndrome (BCS) using rapid quantitative phase-contrast (PC) magnetic resonance (MR) imaging and compare the diagnostic efficacy of PC and MR venography (MRV) to explore the clinical prospects of applying PC quantitative diagnosis in IVC obstruction in BCS.
Materials And Methods:
PC quantitative data and MRV qualitative data obtained in 35 DSA-recognized inferior vena cava obstruction in BCS patients and 35 patients with liver focal lesions found in physical examination were analyzed and compared.
Results:
The areas under the ROC curve for diagnostic parameters related to PC quantitative parameters, including stroke volume, forward flow volume, absolute stroke volume, mean flux, stroke distance, mean velocity (MV), and peak velocity, were 0.7767, 0.7788, 0.7747, 0.7665, 0.9143, 0.9159, and 0.8947, respectively. The sensitivity, specificity, and accuracy of MV in the diagnosis of IVC obstruction were 88.57%, 85.71%, and 87.14%, respectively. For IVC obstruction in BCS, there was no significant difference between the diagnostic efficacy of MV (one of the quantitative parameters of PC) and that of MRV (P = 0.0768).
Conclusion:
PC can be used to diagnose IVC obstruction in BCS and improve the understanding of hemodynamics of IVC obstruction in BCS.
Related Concept Videos
01:20Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
01:20Imaging Studies for Cardiovascular System II:Types of Echocardiography
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for...
01:21Imaging Studies for Cardiovascular System IV: CMRI
01:24Magnetic Resonance Imaging
01:30Radiological Investigation II: MRI and Ventilation Perfusion Scan
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...