Coronary CT angiography in step-and-shoot technique with 256-slice CT: Impact of the field of view on image quality, craniocaudal coverage, and radiation exposure

2012 ◽  
Vol 81 (7) ◽  
pp. 1562-1568 ◽  
Author(s):  
Daniela Muenzel ◽  
Peter B. Noel ◽  
Franziska Dorn ◽  
Martin Dobritz ◽  
Ernst J. Rummeny ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Exposure ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Field Of View ◽  
Coronary Ct ◽  
Step And Shoot

Impact on image quality and radiation exposure in coronary CT angiography: 100 kVp versus 120 kVp

2010 ◽  
Vol 51 (8) ◽  
pp. 903-909 ◽  
Author(s):  
Jonaz Ripsweden ◽  
Torkel B. Brismar ◽  
Jon Holm ◽  
Annika Melinder ◽  
Habib Mir-Akbari ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Exposure ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Coronary Ct

scholarly journals Image Quality and Radiation Exposure With a Low Tube Voltage Protocol for Coronary CT Angiography

2010 ◽  
Vol 3 (11) ◽  
pp. 1113-1123 ◽  
Author(s):  
Jörg Hausleiter ◽  
Stefan Martinoff ◽  
Martin Hadamitzky ◽  
Eugenio Martuscelli ◽  
Iris Pschierer ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Exposure ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Tube Voltage ◽  
Low Tube Voltage ◽  
Coronary Ct

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

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
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