PURPOSE: To assess the feasibility of demonstrating cardiac motion with 313.6-msec single-shot turbo-fast low-angle shot magnetic resonance imaging. MATERIALS AND METHODS: Effects of motion on single-shot images were evaluated with a phantom moving at known velocity. Single-shot images were obtained in eight healthy volunteers and four cardiac patients and compared with conventional cine images. RESULTS: The moving phantom was visualized at the location where zero phase-encoded data were sampled. When the velocity was within the physiologic range of left ventricular wall motion (< 11 cm/sec), the full width at half maximum of the object on a 64 x 64-matrix image with a 4.9-msec repetition time was comparable with that of a stationary phantom. The left ventricular cross-sectional area determined with single-shot imaging showed good correlation with results of conventional cine imaging (r = .96) in healthy volunteers. CONCLUSION: Single-shot imaging can be used for simple and quick assessment of cardiac function.
PURPOSE: To assess the feasibility of demonstrating cardiac motion with 313.6-msec single-shot turbo-fast low-angle shot magnetic resonance imaging. MATERIALS AND METHODS: Effects of motion on single-shot images were evaluated with a phantom moving at known velocity. Single-shot images were obtained in eight healthy volunteers and four cardiac patients and compared with conventional cine images. RESULTS: The moving phantom was visualized at the location where zero phase-encoded data were sampled. When the velocity was within the physiologic range of left ventricular wall motion (< 11 cm/sec), the full width at half maximum of the object on a 64 x 64-matrix image with a 4.9-msec repetition time was comparable with that of a stationary phantom. The left ventricular cross-sectional area determined with single-shot imaging showed good correlation with results of conventional cine imaging (r = .96) in healthy volunteers. CONCLUSION: Single-shot imaging can be used for simple and quick assessment of cardiac function.
Authors: F D Knollmann; J Mäurer; H Kücherer; J C Böck; J W O'Connell; E Botvinick; H W Eichstädt; R Felix Journal: MAGMA Date: 1996-03 Impact factor: 2.310
Authors: M Lombardi; J Kvaerness; G Torheim; J Soma; F Cellerini; M Consalvo; M C Landini; C A Cecchi; C Michelassi; T Skjaerpe; R A Jones; P A Rinck; A L'Abbate Journal: Int J Cardiovasc Imaging Date: 2001-10 Impact factor: 2.357