Academic Journal
Accuracy of noncontrast quiescent-interval single-shot lower extremity MR angiography versus CT angiography for diagnosis of peripheral artery disease: comparison with digital subtraction angiography
| العنوان: | Accuracy of noncontrast quiescent-interval single-shot lower extremity MR angiography versus CT angiography for diagnosis of peripheral artery disease: comparison with digital subtraction angiography |
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| المؤلفون: | Akos Varga-Szemes, Julian L. Wichmann, U. Joseph Schoepf, Pal Suranyi, Carlo N. De Cecco, Giuseppe Muscogiuri, Damiano Caruso, Ricardo T. Yamada, Sheldon E. Litwin, Christian Tesche, Taylor M. Duguay, Shivraman Giri, Rozemarijn Vliegenthart, Thomas M. Todoran |
| المساهمون: | Varga-Szemes, A, Wichmann, J, Joseph Schoepf, U, Suranyi, P, De Cecco, C, Muscogiuri, G, Caruso, D, Yamada, R, Litwin, S, Tesche, C, Duguay, T, Giri, S, Vliegenthart, R, Todoran, T |
| بيانات النشر: | Elsevier Inc. US |
| سنة النشر: | 2017 |
| المجموعة: | Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive) |
| مصطلحات موضوعية: | cardiovascular magnetic resonance, noncontrast magnetic resonance angiography, quiescent interval single shot |
| الوصف: | Objectives This study sought to evaluate the image quality and diagnostic accuracy of noncontrast quiescent-interval single-shot (QISS) magnetic resonance angiography (MRA) versus iodine-contrast computed tomography angiography (CTA) in patients with peripheral artery disease (PAD), with invasive digital subtraction angiography (DSA) as the reference standard. Background QISS is a recently introduced noncontrast MRA technique. Although the diagnostic accuracy of QISS is reportedly similar to that of contrast-enhanced MRA, its performance compared with contrast-enhanced CTA, the most frequently used noninvasive modality for evaluation of PAD, is unknown. Methods Thirty patients (66 ± 7 years of age) with PAD underwent lower extremity CTA with third-generation dual-source dual-energy CT and 1.5-T MRA using a prototype noncontrast QISS sequence. DSA was performed within 50 days. The abdominal aorta and lower extremity run-off were imaged. Eighteen arterial segments were analyzed. Subjective image quality (3-point Likert scale) and stenosis (5-point grading) were evaluated by 2 observers and compared using the Mann–Whitney U and chi-square tests, respectively. Sensitivity and specificity of MRA and CTA for >50% stenosis detection were compared using the McNemar-test. Results Of 540 segments, 15 (2.8%) and 42 (7.8%) inconclusive segments were excluded from MRA and CTA analysis, respectively (p = 0.0006). The DSA results were available for 410 of the remaining segments. Overall subjective image quality was rated similarly with QISS-MRA (2.52 [95% confidence interval: 2.46 to 2.57]) and CTA (2.49 [95% confidence interval: 2.43 to 2.55]; p = 0.5062). The sensitivity and specificity of MRA for >50% stenosis were 84.9% and 97.2%, respectively, similar to those of CTA (87.3% and 95.4%, respectively). Interobserver agreement for stenosis detection was excellent for MRA (κ > 0.81) and CTA (κ > 0.81). Conclusions Noncontrast QISS-MRA provides high diagnostic accuracy compared with DSA, while being less prone to ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | STAMPA |
| اللغة: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/pmid/28109932; info:eu-repo/semantics/altIdentifier/wos/WOS:000411953200005; volume:10; issue:10; firstpage:1116; lastpage:1124; numberofpages:9; journal:JACC. CARDIOVASCULAR IMAGING; http://hdl.handle.net/10281/378166; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85009752488 |
| DOI: | 10.1016/j.jcmg.2016.09.030 |
| الاتاحة: | http://hdl.handle.net/10281/378166 https://doi.org/10.1016/j.jcmg.2016.09.030 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.7217C2A |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.jcmg.2016.09.030 |
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