scholarly journals Hand vascular involvement assessed by magnetic resonance angiography in systemic sclerosis

2007 ◽  
Vol 56 (8) ◽  
pp. 2747-2754 ◽  
Author(s):  
Y. Allanore ◽  
R. Seror ◽  
A. Chevrot ◽  
A. Kahan ◽  
J. L. Drapé
Keyword(s):  
Systemic Sclerosis ◽  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Vascular Involvement

Magnetic Resonance Angiography of the Hand Vasculature in Patients With Systemic Sclerosis and Systemic Lupus Erythematosus

Hand ◽  
2021 ◽  
pp. 155894472110643
Author(s):  
Paul A. Asadourian ◽  
Aaron Z. Chen ◽  
Bryan Aristega Almeida ◽  
Jessica K. Gordon ◽  
Alissa J. Burge ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Systemic Sclerosis ◽  
Magnetic Resonance Angiography ◽  
Lupus Erythematosus ◽  
Vascular Involvement ◽  
Systemic Lupus ◽  
Conventional Angiography ◽  
Digital Ischemia ◽  
Contrast Enhanced

Background: When patients with systemic sclerosis (SSc) and systemic lupus erythematosus (SLE) develop digital ischemia, conventional angiography (CA) is traditionally used to assess hand vasculature. Recently, Chang et al described an angiographic classification system for patients with SSc. Conventional angiography uses intravascular contrast agents that are nephrotoxic and vasoconstrictive. Owing to these limitations, this study assesses the use of contrast-enhanced magnetic resonance angiography (MRA) as an alternative to CA to evaluate hand vasculature in patients with digital ischemia. Methods: This retrospective case series reports on 38 contrast-enhanced MRAs of hand vasculature from 30 symptomatic patients with SSc (N = 21) or SLE (N = 9). The radial and ulnar arteries (RA, UA) and the superficial and deep palmar arches were evaluated at standard reference points both quantitatively and qualitatively for their diameter, patency, and Chang classification. Results: In SSc MRAs (n = 26), the UA was significantly smaller than the RA and was occluded in 46%. In SLE MRAs (n = 12), the UA and RA had no difference in diameter and the UA was occluded in 25%. In SSc, the most common Chang classification was type 2 (UA involvement) in 44%. In SLE, the most common Chang classification was type 4 (UA and RA involvement) in 45%, with 18% classified as type 2. Conclusions: Contrast-enhanced MRA used to assess hand vasculature in SSc patients with digital ischemia shows similar patterns of vascular involvement as previously demonstrated by CA. While vascular involvement in SSc predominantly involves the UA, the RA is also frequently involved in SLE.

Assessment of vascular involvement with magnetic resonance angiography (MRA) in pancoast syndrome

1995 ◽  
Vol 13 (4) ◽  
pp. 523-530 ◽  
Author(s):  
Jean Pierre Laissy ◽  
Philippe Soyer ◽  
Sid Reda Sekkal ◽  
Djamel Tebboune ◽  
Vincent Servois ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Vascular Involvement ◽  
Pancoast Syndrome

scholarly journals Comment on: Micro magnetic resonance angiography of the finger in systemic sclerosis

Rheumatology ◽  
2008 ◽  
Vol 48 (3) ◽  
pp. 321-321 ◽  
Author(s):  
N. McKay ◽  
L. Ottewell ◽  
B. Griffiths ◽  
J. Allen
Keyword(s):  
Systemic Sclerosis ◽  
Magnetic Resonance ◽  
Magnetic Resonance Angiography

scholarly journals Comment on: Micro magnetic resonance angiography of the finger in systemic sclerosis: reply

Rheumatology ◽  
2008 ◽  
Vol 48 (3) ◽  
pp. 321-322
Author(s):  
J. Wang ◽  
V. L. Yarnykh ◽  
J. A. Molitor ◽  
R. A. Nash ◽  
B. Chu ◽  
...  
Keyword(s):  
Systemic Sclerosis ◽  
Magnetic Resonance ◽  
Magnetic Resonance Angiography

scholarly journals Micro magnetic resonance angiography of the finger in systemic sclerosis

Rheumatology ◽  
2008 ◽  
Vol 47 (8) ◽  
pp. 1239-1243 ◽  
Author(s):  
J. Wang ◽  
V. L. Yarnykh ◽  
J. A. Molitor ◽  
R. A. Nash ◽  
B. Chu ◽  
...  
Keyword(s):  
Systemic Sclerosis ◽  
Magnetic Resonance ◽  
Magnetic Resonance Angiography

Dilatation of the entire thoracic aorta in patients with bicuspid aortic valve: a magnetic resonance angiography study

VASA ◽  
2005 ◽  
Vol 34 (3) ◽  
pp. 181-185 ◽  
Author(s):  
Westhoff-Bleck ◽  
Meyer ◽  
Lotz ◽  
Tutarel ◽  
Weiss ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Aortic Valve ◽  
Pulmonary Artery ◽  
Aortic Arch ◽  
Thoracic Aorta ◽  
Aortic Root ◽  
Ascending Aorta ◽  
Descending Aorta ◽  
Severe Aortic Regurgitation

Background: The presence of a bicuspid aortic valve (BAV) might be associated with a progressive dilatation of the aortic root and ascending aorta. However, involvement of the aortic arch and descending aorta has not yet been elucidated. Patients and methods: Magnetic resonance angiography (MRA) was used to assess the diameter of the ascending aorta, aortic arch, and descending aorta in 28 patients with bicuspid aortic valves (mean age 30 ± 9 years). Results: Patients with BAV, but without significant aortic stenosis or regurgitation (n = 10, mean age 27 ± 8 years, n.s. versus control) were compared with controls (n = 13, mean age 33 ± 10 years). In the BAV-patients, aortic root diameter was 35.1 ± 4.9 mm versus 28.9 ± 4.8 mm in the control group (p < 0.01). The diameter of the ascending aorta was also significantly increased at the level of the pulmonary artery (35.5 ± 5.6 mm versus 27.0 ± 4.8 mm, p < 0.001). BAV-patients with moderate or severe aortic regurgitation (n = 18, mean age 32 ± 9 years, n.s. versus control) had a significant dilatation of the aortic root, ascending aorta at the level of the pulmonary artery (41.7 ± 4.8 mm versus 27.0 ± 4.8 mm in control patients, p < 0.001) and, furthermore, significantly increased diameters of the aortic arch (27.1 ± 5.6 mm versus 21.5 ± 1.8 mm, p < 0.01) and descending aorta (21.8 ± 5.6 mm versus 17.0 ± 5.6 mm, p < 0.01). Conclusions: The whole thoracic aorta is abnormally dilated in patients with BAV, particularly in patients with moderate/severe aortic regurgitation. The maximum dilatation occurs in the ascending aorta at the level of the pulmonary artery. Thus, we suggest evaluation of the entire thoracic aorta in patients with BAV.

Diagnostic accuracy of magnetic resonance angiography for acute pulmonary embolism - a systematic review and meta-analysis

VASA ◽  
2016 ◽  
Vol 45 (2) ◽  
pp. 149-154 ◽  
Author(s):  
Jie Li ◽  
Lei Feng ◽  
Jiangbo Li ◽  
Jian Tang
Keyword(s):  
Pulmonary Embolism ◽  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Diagnostic Accuracy ◽  
Acute Pulmonary Embolism ◽  
Meta Analysis ◽  
Likelihood Ratios ◽  
Summary Receiver Operating Characteristic ◽  
Acute Pe ◽  
Limited Sensitivity

Abstract. Background: The aim of this meta-analysis was to evaluate the diagnostic accuracy of magnetic resonance angiography (MRA) for acute pulmonary embolism (PE). Methods: A systematic literature search was conducted that included studies from January 2000 to August 2015 using the electronic databases PubMed, Embase and Springer link. The summary receiver operating characteristic (SROC) curve, sensitivity, specificity, positive likelihood ratios (PLR), negative likelihood ratios (NLR), and diagnostic odds ratio (DOR) as well as the 95 % confidence intervals (CIs) were calculated to evaluate the diagnostic accuracy of MRA for acute PE. Meta-disc software version 1.4 was used to analyze the data. Results: Five studies were included in this meta-analysis. The pooled sensitivity (86 %, 95 % CI: 81 % to 90 %) and specificity (99 %, 95 % CI: 98 % to 100 %) demonstrated that MRA diagnosis had limited sensitivity and high specificity in the detection of acute PE. The pooled estimate of PLR (41.64, 95 % CI: 17.97 to 96.48) and NLR (0.17, 95 % CI: 0.11 to 0.27) provided evidence for the low missed diagnosis and misdiagnosis rates of MRA for acute PE. The high diagnostic accuracy of MRA for acute PE was demonstrated by the overall DOR (456.51, 95 % CI: 178.38 - 1168.31) and SROC curves (AUC = 0.9902 ± 0.0061). Conclusions: MRA can be used for the diagnosis of acute PE. However, due to limited sensitivity, MRA cannot be used as a stand-alone test to exclude acute PE.

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