Low-dose coronary-CT angiography using step and shoot at any heart rate: comparison of image quality at systole for high heart rate and diastole for low heart rate with a 128-slice dual-source machine

2012 ◽  
Author(s):  
Jean-François Paul ◽  
Aude Amato ◽  
Adela Rohnean
Keyword(s):  
Heart Rate ◽  
Image Quality ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Low Dose ◽  
High Heart Rate ◽  
Coronary Ct ◽  
Dual Source ◽  
Step And Shoot ◽  
Rate Comparison

Appropriate use of a beta-blocker in paediatric coronary CT angiography

2018 ◽  
Vol 28 (10) ◽  
pp. 1148-1153 ◽  
Author(s):  
Hirofumi Watanabe ◽  
Hiroshi Kamiyama ◽  
Masataka Kato ◽  
Akiko Komori ◽  
Yuriko Abe ◽  
...  
Keyword(s):  
Heart Rate ◽  
Image Quality ◽  
Adverse Events ◽  
Radiation Exposure ◽  
Ct Angiography ◽  
Beta Blocker ◽  
Coronary Ct Angiography ◽  
Standard Dose ◽  
High Heart Rate ◽  
Coronary Ct

AbstractBackgroundThere is no standard dose or protocol for beta-blocker administration as preconditioning in children undergoing coronary CT angiography.MethodsA total of 63 consecutive patients, with a mean age of 10.0±3.1 years, who underwent coronary CT angiography to assess possible coronary complications were enrolled in a single-centre, retrospective study. All patients were given an oral beta-blocker 1 hour before coronary CT angiography. Additional oral beta-blocker or intravenous beta-blocker was given to those with a high heart rate. We compared image quality, radiation exposure, and adverse events among the patients without additional beta-blocker, with additional oral beta-blocker, and with additional intravenous beta-blocker.ResultsThere were no significant differences in image quality or radiation exposure among the groups. The heart rate just before scanning was significantly correlated with image quality (p<0.001, r=−0.533) but was not correlated with radiation exposure (p=0.45, r=0.096). There were no adverse events related to any allergic reaction, thereby showing the effectiveness of the beta-blocker.ConclusionInitial oral beta-blocker administration (0.8 mg/kg/dose) should be administered to all children undergoing coronary CT angiography. Additional intravenous beta-blocker should be given to those with poor heart rate control to improve image quality without increasing radiation exposure or allowing adverse events.

Optimal Electrocardiographic Pulsing Windows and Heart Rate: Effect on Image Quality and Radiation Exposure at Dual-Source Coronary CT Angiography

Radiology ◽  
2008 ◽  
Vol 248 (3) ◽  
pp. 792-798 ◽  
Author(s):  
Annick C. Weustink ◽  
Nico R. Mollet ◽  
Francesca Pugliese ◽  
Willem B. Meijboom ◽  
Koen Nieman ◽  
...  
Keyword(s):  
Heart Rate ◽  
Image Quality ◽  
Radiation Exposure ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Rate Effect ◽  
Coronary Ct ◽  
Dual Source ◽  
Heart Rate Effect

Improved image quality at 256-slice coronary CT angiography in patients with a high heart rate and coronary artery disease: comparison with 64-slice CT imaging

2014 ◽  
Vol 56 (11) ◽  
pp. 1308-1314 ◽  
Author(s):  
Seitaro Oda ◽  
Kazuhiro Katahira ◽  
Daisuke Utsunomiya ◽  
Hiroko Takaoka ◽  
Keiichi Honda ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Heart Rate ◽  
Coronary Artery ◽  
Image Quality ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Ct Imaging ◽  
High Heart Rate ◽  
Coronary Ct ◽  
Artery Disease

Step and shoot coronary CT angiography using 256-slice CT: effect of heart rate and heart rate variability on image quality

2011 ◽  
Vol 21 (11) ◽  
pp. 2277-2284 ◽  
Author(s):  
D. Muenzel ◽  
P. B. Noel ◽  
F. Dorn ◽  
M. Dobritz ◽  
E. J. Rummeny ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Image Quality ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Coronary Ct ◽  
Step And Shoot

Image quality and artifacts in coronary CT angiography with dual-source CT: Initial clinical experience

2008 ◽  
Vol 2 (2) ◽  
pp. 105-114 ◽  
Author(s):  
Damini Dey ◽  
Cynthia J. Lee ◽  
Muneo Ohba ◽  
Ariel Gutstein ◽  
Piotr J. Slomka ◽  
...  
Keyword(s):  
Image Quality ◽  
Ct Angiography ◽  
Clinical Experience ◽  
Coronary Ct Angiography ◽  
Dual Source Ct ◽  
Coronary Ct ◽  
Dual Source ◽  
Initial Clinical Experience
Sign in / Sign up

Export Citation Format

Share Document