PURPOSE: To investigate the impact of saline bolus chaser in coronary angiography with a 16-row multislice CT (16-MSCT) scanner. MATERIALS AND METHODS: 32 patients were divided in two groups for contrast material (cm) administration: group 1 (140 ml at 4 ml/s), and group 2 (100 ml at 4 ml/s followed by 40 ml of saline chaser at 4 ml/s). All patients underwent ECG-gated coronary angiography with a 16-MSCT scanner. The attenuation at the origin coronary vessels was assessed. Three regions of interest were drawn throughout the data-set: ascending aorta (ROI1); descending aorta (ROI2); pulmonary artery (ROI3). The attenuation in the superior vena cava was recorded (ROI4). The average attenuation and the slope were calculated in each ROI. RESULTS: The average attenuation in the coronary vessels was not significantly different in the two groups. The attenuation value in the superior vena cava was significantly inferior in group 2. CONCLUSIONS: 16-row MSCT coronary angiography with bolus chaser allows optimal vessel enhancement with a lower dose of cm and a lower enhancement of the superior vena cava and the right heart.
PURPOSE: To investigate the impact of saline bolus chaser in coronary angiography with a 16-row multislice CT (16-MSCT) scanner. MATERIALS AND METHODS: 32 patients were divided in two groups for contrast material (cm) administration: group 1 (140 ml at 4 ml/s), and group 2 (100 ml at 4 ml/s followed by 40 ml of saline chaser at 4 ml/s). All patients underwent ECG-gated coronary angiography with a 16-MSCT scanner. The attenuation at the origin coronary vessels was assessed. Three regions of interest were drawn throughout the data-set: ascending aorta (ROI1); descending aorta (ROI2); pulmonary artery (ROI3). The attenuation in the superior vena cava was recorded (ROI4). The average attenuation and the slope were calculated in each ROI. RESULTS: The average attenuation in the coronary vessels was not significantly different in the two groups. The attenuation value in the superior vena cava was significantly inferior in group 2. CONCLUSIONS: 16-row MSCT coronary angiography with bolus chaser allows optimal vessel enhancement with a lower dose of cm and a lower enhancement of the superior vena cava and the right heart.
Authors: E Maffei; C Martini; S Seitun; T Arcadi; C Tedeschi; A Guaricci; R Malagò; G Tarantini; A Aldrovandi; F Cademartiri Journal: Radiol Med Date: 2011-06-04 Impact factor: 3.469
Authors: E Maffei; A Palumbo; C Martini; C Tedeschi; T Arcadi; L La Grutta; R Malagò; A C Weustink; N R Mollet; R De Rosa; O Catalano; I Salamone; A Blandino; M Midiri; F Cademartiri Journal: Radiol Med Date: 2011-09-02 Impact factor: 3.469
Authors: E Maffei; A Palumbo; C Martini; W Meijboom; C Tedeschi; P Spagnolo; A Zuccarelli; A Weustink; T Torri; N Mollet; S Seitun; G P Krestin; F Cademartiri Journal: Radiol Med Date: 2009-12-16 Impact factor: 3.469
Authors: E Maffei; M Midiri; V Russo; M Rengo; C Tedeschi; P Spagnolo; S Seitun; M Francone; A I Guaricci; N Carrabba; R Malagò; A Cuocolo; T Arcadi; O A Catalano; F Cademartiri Journal: Radiol Med Date: 2013-01-28 Impact factor: 3.469