Dataset Information
Surveillance of abdominal aortic aneurysm using accelerated 3D non-contrast black-blood cardiovascular magnetic resonance with compressed sensing (CS-DANTE-SPACE).
Ontology highlight
ABSTRACT: Background
3D non-contrast high-resolution black-blood cardiovascular magnetic resonance (CMR) (DANTE-SPACE) has been used for surveillance of abdominal aortic aneurysm (AAA) and validated against computed tomography (CT) angiography. However, it requires a long scan time of more than 7?min. We sought to develop an accelerated sequence applying compressed sensing (CS-DANTE-SPACE) and validate it in AAA patients undergoing surveillance.Methods
Thirty-eight AAA patients (all males, 73?±?6?years) under clinical surveillance were recruited for this study. All patients were scanned with DANTE-SPACE (scan time 7:10?min) and CS-DANTE-SPACE (scan time 4:12?min, a reduction of 41.4%). Nine 9 patients were scanned more than 2 times. In total, 50 pairs of images were available for comparison. Two radiologists independently evaluated the image quality on a 1-4 scale, and measured the maximal diameter of AAA, the intra-luminal thrombus (ILT) and lumen area, ILT-to-muscle signal intensity ratio, and the ILT-to-lumen contrast ratio. The sharpness of the aneurysm inner/outer boundaries was quantified.Results
CS-DANTE-SPACE achieved comparable image quality compared with DANTE-SPACE (3.15?±?0.67 vs. 3.03?±?0.64, p?=?0.06). There was excellent agreement between results from the two sequences for diameter/area and ILT ratio measurements (ICCs>?0.85), and for quantifying growth rate (3.3?±?3.1 vs. 3.3?±?3.4?mm/year, ICC?=?0.95.) CS-DANTE-SPACE showed a higher ILT-to-lumen contrast ratio (p?=?0.01) and higher sharpness than DANTE-SPACE (p?=?0.002). Both sequences had excellent inter-reader reproducibility for quantitative measurements (ICC?>?0.88).Conclusion
CS-DANTE-SPACE can reduce scan time while maintaining image quality for AAA imaging. It is a promising tool for the surveillance of patients with AAA disease in the clinical setting.
SUBMITTER: Zhu C
PROVIDER: S-EPMC6816154 | biostudies-literature | 2019 Oct
REPOSITORIES: biostudies-literature
Publications
Surveillance of abdominal aortic aneurysm using accelerated 3D non-contrast black-blood cardiovascular magnetic resonance with compressed sensing (CS-DANTE-SPACE).
Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance 20191028 1
<h4>Background</h4>3D non-contrast high-resolution black-blood cardiovascular magnetic resonance (CMR) (DANTE-SPACE) has been used for surveillance of abdominal aortic aneurysm (AAA) and validated against computed tomography (CT) angiography. However, it requires a long scan time of more than 7 min. We sought to develop an accelerated sequence applying compressed sensing (CS-DANTE-SPACE) and validate it in AAA patients undergoing surveillance.<h4>Methods</h4>Thirty-eight AAA patients (all males, ...[more]
