MR Venography

Ruehm, Stefan G.

doi:10.1007/88-470-0352-0_20

Cited by 4 publications

(5 citation statements)

References 20 publications

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“…For the diagnosis of both PE as well as of DVT, contrast-enhanced MRA and MRV have proven to be superior methods to time-of-flight or phase-contrast MRI due to their sensitivity in the diagnosis of thromboembolic disease [ 16 , 17 ]. Our study demonstrates that a large number of vessels can be evaluated in a one-stop shop MRA/MRV which are otherwise difficult to examine, such as the pulmonary arteries, the inferior vena cava, the deep veins of the lower extremity or the deep pelvic veins, in the shortest amount of time with predominantly excellent image quality.…”

Section: Discussionmentioning

confidence: 99%

“…As with any imaging modality, a series of different types of artifacts influence the interpretation and cause limitations of the method, such as motion and metal artefacts. Therefore, MIP and source images should be interpreted together [ 16 , 21 ]. The total examination time of the combined MR protocol was 10 min or less for each patient.…”

Section: Discussionmentioning

confidence: 99%

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Gadofosveset-Trinatrium-Enhanced MR Angiography and MR Venography in the Diagnosis of Venous Thromboembolic Disease: A Single-Center Cohort Study

et al. 2022

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Background: The aim of this single-center combined prospective/retrospective cohort study was to analyze Gadolinium (Gd)-enhanced MRA (magnetic resonance angiography) and MRV (MR venography) for the diagnosis of pulmonary artery embolism and deep venous thrombosis. The gold standard methods result in major exposure to radiation and a high amount of nephrotoxic iodinated contrast media. This is the first larger contrast-enhanced MR imaging study of acute and chronic venous thromboembolic disease of various stages. Methods: We prospectively examined 88 patients presenting clinical signs of deep vein thrombosis and/or pulmonary artery embolism. A single-session, one-stop shop Gd-enhanced MRA/MRV at 1.5 Tesla, using gradient echo sequences with very short repetition and echo times as well as low flip angles with subtraction and three-dimensional reconstruction, was performed. A diagnosis was made with the consensus of two experienced radiologists. Results: We observed excellent MRA image quality in 87% and even higher diagnostic image quality of MRV in 90% of our examinations. Pulmonary artery embolism occurred with deep vein thrombosis in 22%. Conclusions: Gd-enhanced MRA/MRV provided excellent image quality for the diagnosis of venous thromboembolic disease in the majority of cases. It may be particularly useful to plan and follow-up filter implantation and retrieval in the inferior caval vein.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Gadofosveset-Trinatrium-Enhanced MR Angiography and MR Venography in the Diagnosis of Venous Thromboembolic Disease: A Single-Center Cohort Study

et al. 2022

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“…These capabilities have resulted in highly accurate depiction and detection of disease in cervical, thoracic, abdominal and peripheral arteries as well as veins [29][30][31][32][33][34][35][36][37][38][39][40][41]. Other investigators have used various MRA techniques to depict the upper extremity vasculature [33,34,[38][39][40][41][42][43][44][45][46][47].…”

Section: Discussionmentioning

confidence: 99%

Magnetic resonance angiographic assessment of upper extremity vessels prior to vascular access surgery: feasibility and accuracy

et al. 2007

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A contrast-enhanced magnetic resonance angiography (CE-MRA) protocol for selective imaging of the entire upper extremity arterial and venous tree in a single exam has been developed. Twenty-five end-stage renal disease (ESRD) patients underwent CE-MRA and duplex ultrasonography (DUS) of the upper extremity prior to hemodialysis vascular access creation. Accuracy of CE-MRA arterial and venous diameter measurements were compared with DUS and intraoperative (IO) diameter measurements, the standard of reference. Upper extremity vasculature depiction was feasible with CE-MRA. CE-MRA forearm and upper arm arterial diameters were 2.94 +/- 0.67 mm and 4.05 +/- 0.84 mm, respectively. DUS arterial diameters were 2.80 +/- 0.48 mm and 4.38 +/- 1.24 mm; IO diameters were 3.00 +/- 0.35 mm and 3.55 +/- 0.51 mm. Forearm arterial diameters were accurately determined with both techniques. Both techniques overestimated upper arm arterial diameters significantly. Venous diameters were accurately determined with CE-MRA but not with DUS (forearm: CE-MRA: 2.64 +/- 0.61 mm; DUS: 2.50 +/- 0.44 mm, and IO: 3.40 +/- 0.22 mm; upper arm: CE-MRA: 4.09 +/- 0.71 mm; DUS: 3.02 +/- 1.65 mm, and IO: 4.30 +/- 0.78 mm). CE-MRA enables selective imaging of upper extremity vasculature in patients requiring hemodialysis access. Forearm arterial diameters can be assessed accurately by CE-MRA. Both CE-MRA and DUS slightly overestimate upper arm arterial diameters. In comparison to DUS, CE-MRA enables a more accurate determination of upper extremity venous diameters.

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“…Disadvantages also included high cost, requirement of operator's expertise (especially for hepatic venography), and associated complications such as hemorrhage. MRI and non-enhanced magnetic resonance angiography (MRA) with time-of-flight (TOF) and phasecontrast (PC) techniques were other non-invasive means for demonstrating the hepatic venous system, but were limited by long acquisition time, motion and flow artifacts, and saturation effects [2,4,[18][19][20][21] . 3D CE MRA is a recently developed, non-invasive, fast and easy to be performed technique, which is capable of depicting vascular anatomy in multiple projections.…”

Section: Discussionmentioning

confidence: 99%

Budd-Chiari syndrome: Diagnosis with three-dimensional contrast-enhanced magnetic resonance angiography

Lin

Chen²,

Zhou³

et al. 2003

WJG

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AIM:To evaluate the role of three-dimensional contrastenhanced magnetic resonance angiography (3D CE MRA) in the diagnosis of Budd-Chiari syndrome (BCS). METHODS:Twenty-three patients with BCS underwent 3D CE MRA examination, in which 13 cases were secondary to either hepatocellular carcinoma (11 cases), right adrenal carcinoma (1 case) or thrombophlebitis (1 case) and 10 suffered from primary BCS. The patency of the inferior vena cava (IVC), hepatic and portal veins as well as the presence of intra-and extrahepatic collaterals, liver parenchymal abnormalities and porto-systemic varices were evaluated. Inferior vena cavography was performed in 10 cases. The diagnosis of IVC obstruction by 3D CE MRA was compared with that demonstrated by inferior vena cavography.

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MR Venography

Cited by 4 publications

References 20 publications

Gadofosveset-Trinatrium-Enhanced MR Angiography and MR Venography in the Diagnosis of Venous Thromboembolic Disease: A Single-Center Cohort Study

Gadofosveset-Trinatrium-Enhanced MR Angiography and MR Venography in the Diagnosis of Venous Thromboembolic Disease: A Single-Center Cohort Study

Magnetic resonance angiographic assessment of upper extremity vessels prior to vascular access surgery: feasibility and accuracy

Budd-Chiari syndrome: Diagnosis with three-dimensional contrast-enhanced magnetic resonance angiography

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