Comparison of 2D and 3D quiescent-interval slice-selective non-contrast MR angiography in patients with peripheral artery disease
| Autor: | Ioannis Koktzoglou, Tilman Emrich, Robert R. Edelman, Pascale Aouad, Thomas M. Todoran, U. Joseph Schoepf, Basel Yacoub, Akos Varga-Szemes |
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| Rok vydání: | 2021 |
| Předmět: |
Radiological and Ultrasound Technology
medicine.diagnostic_test business.industry Arterial disease Image quality media_common.quotation_subject Biophysics Area under the curve medicine.disease Magnetic resonance angiography 030218 nuclear medicine & medical imaging 03 medical and health sciences Stenosis 0302 clinical medicine Medicine Contrast (vision) Radiology Nuclear Medicine and imaging In patient business Nuclear medicine Computed tomography angiography media_common |
| Zdroj: | Magnetic Resonance Materials in Physics, Biology and Medicine. 34:649-658 |
| ISSN: | 1352-8661 0968-5243 |
| DOI: | 10.1007/s10334-021-00927-y |
| Popis: | To evaluate the potential clinical benefit of the superior spatial resolution of 3D prototype thin-slab stack-of-stars (tsSOS) quiescent-interval slice-selective (QISS) MRA over standard 2D-QISS MRA for the detection peripheral artery disease (PAD), using computed tomography angiography (CTA) as reference. Twenty-three patients (70 ± 8 years, 18 men) with PAD who had previously undergone run-off CTA were prospectively enrolled. Patients underwent non-contrast MRA using 2D-QISS and tsSOS-QISS at 1.5 T. Eighteen arterial segments were evaluated for subjective and objective image quality (normalized signal-to-noise, nSNR), vessel sharpness, and area under the curve (AUC) for > 50% stenosis detection. Overall subjective image quality ratings for the entire run-off were not different between tsSOS-QISS and 2D-QISS (3 [3; 4] vs 4 [3; 4], respectively; P = 0.813). Sharpness of primary branch vessels demonstrated improved image quality using tsSOS-QISS compared with 2D-QISS (4 [3; 4] vs 3 [2; 3], P = 0.008). Objective image quality measures were not different between 2D-QISS and tsSOS-QISS (nSNR 5.0 ± 1.9 vs 4.2 ± 1.8; P = 0.132). AUCs for significant stenosis detection by tsSOS-QISS and 2D-QISS were 0.877 and 0.856, respectively (P = 0.336). The prototype 3D tsSOS-QISS technique provides similar accuracy in patients with PAD to a standard commercially available 2D-QISS technique, indicating that the use of relatively thick slices does not limit the diagnostic performance of 2D-QISS. However, subjective image quality for branch vessel depiction is improved using the 3D approach. |
| Databáze: | OpenAIRE |
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