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MRA Versus DSA in the Assessment of Occlusive Disease in the Aortic Arch Vessels:Accuracy in Detecting the Severity, Number, and Length of Stenoses
- Source :
- Journal of Endovascular Therapy. 11:152-160
- Publication Year :
- 2004
- Publisher :
- International Society of Endovascular Specialists, 2004.
-
Abstract
- Purpose To compare the diagnostic accuracy of contrast-enhanced magnetic resonance angiography (MRA) to that of digital subtraction angiography (DSA) in the detection, grading, and measurement of atherosclerotic stenoses involving the aortic arch arteries. Methods The MRA and DSA studies from 28 patients (16 women; mean age 61.6 years, range 24-83) being evaluated for possible aortic arch vessel disease were examined. The aortic arch vasculature was divided into 9 segments; within each segment, the presence and severity of stenotic or occlusive disease was determined based on a 5-point scale. In addition, stenosis length and distance to the branch were measured in 5-mm increments. Image quality was assessed using a 5-point scale. The accuracy, sensitivity, and specificity values, as well as the positive and negative predictive values in MRA's identification of lesions, were evaluated in comparison to DSA. Results In 28 patients, 189 segments were assessed by both methods. Of these, 173 were correctly rated by MRA, resulting in an accuracy of 91.5%. The accuracy dropped slightly to 86.5% when 11 "not assessable" lesions were included. Sensitivity and specificity for severity measurement were 88.5% and 95.6%, respectively. In 39 of 45 lesions, stenosis length measurements were identical by both methods, but there was a difference of 0.5 cm each in 6 lesions. Conclusions MRA as compared to DSA shows high accuracy in the detection and grading of lesions involving the aortic arch vessels. The noninvasive nature of this method recommends its use for screening, treatment planning, and follow-up in known or suspected arterial disease in aortic arch arteries.
- Subjects :
- Adult
Male
Aortic arch
medicine.medical_specialty
Arteriosclerosis
Aortic Diseases
Aorta, Thoracic
Sensitivity and Specificity
Magnetic resonance angiography
medicine.artery
medicine
Humans
Radiology, Nuclear Medicine and imaging
Subclavian artery
Aged
Retrospective Studies
Aged, 80 and over
Aorta
medicine.diagnostic_test
business.industry
Angiography, Digital Subtraction
Magnetic resonance imaging
Digital subtraction angiography
Middle Aged
medicine.disease
Radiographic Image Enhancement
Stenosis
Angiography
cardiovascular system
Female
Surgery
Radiology
Cardiology and Cardiovascular Medicine
business
Magnetic Resonance Angiography
Subjects
Details
- ISSN :
- 15451550 and 15266028
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- Journal of Endovascular Therapy
- Accession number :
- edsair.doi.dedup.....99a2d41a0cc0a0e5f47a448c9af0ba36