Female Breast Radiation Exposure During Thorax Multidetector Computed Tomography and the Effectiveness of Bismuth Breast Shield to Reduce Breast Radiation Dose

2007 ◽  
Vol 31 (1) ◽  
pp. 138-142 ◽  
Author(s):  
Mehmet Halit Yilmaz ◽  
Sait Albayram ◽  
Do??an Ya??ar ◽  
Harun ??zer ◽  
??brahim Adaletli ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Radiation Dose ◽  
Radiation Exposure ◽  
Multidetector Computed Tomography ◽  
Female Breast

scholarly journals Usefulness of High Helical Pitch Acquisition for Reduction of Patient Radiation Dose in Cardiac Multidetector Computed Tomography

2009 ◽  
Vol 65 (7) ◽  
pp. 903-912 ◽  
Author(s):  
Tomonari Sano ◽  
Hideyuki Matsutani ◽  
Takeshi Kondo ◽  
Takako Sekine ◽  
Takehiro Arai ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Radiation Dose ◽  
Multidetector Computed Tomography ◽  
Helical Pitch ◽  
Patient Radiation Dose

scholarly journals Prospective Electrocardiogram-Gated Delayed Enhanced Multidetector Computed Tomography Accurately Quantifies Infarct Size and Reduces Radiation Exposure

2009 ◽  
Vol 2 (4) ◽  
pp. 412-420 ◽  
Author(s):  
Hyuk-Jae Chang ◽  
Richard T. George ◽  
Karl H. Schuleri ◽  
Kristine Evers ◽  
Kakuya Kitagawa ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Infarct Size ◽  
Radiation Exposure ◽  
Multidetector Computed Tomography

Multidetector Computed Tomography Angiography (MD-CTA) of Coronary Artery Bypass Grafts – Update 2017

2017 ◽  
Vol 190 (03) ◽  
pp. 237-249 ◽  
Author(s):  
Florian Jungmann ◽  
Tilman Emrich ◽  
Peter Mildenberger ◽  
Anna Emrich ◽  
Christoph Düber ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Coronary Artery ◽  
Radiation Dose ◽  
Multidetector Computed Tomography ◽  
Computed Tomography Angiography ◽  
Artery Bypass ◽  
Graft Patency ◽  
Bypass Grafts ◽  
Radiation Dose Exposure ◽  
Multidetector Computed Tomography Angiography

Background Coronary artery bypass grafting (CABG) is still an important therapeutic approach in the treatment especially of advanced coronary artery disease. In this study, we elucidate the current role of multidetector computed tomography angiography (MD-CTA) in imaging patients after CABG surgery. Method This study is based on recent reports in the literature (2007 – 2016) on imaging of CABG using 64-slice MD-CT scanners and beyond. We included 13 reports that compared ECG-gated MD-CTA with conventional invasive coronary angiography (ICA) as the reference standard for the assessment of graft patency and for the detection of > 50 % stenoses. These studies had to provide absolute values for true-positive, true-negative, false-positive and false-negative results or at least allow calculation of these numbers. In total, 1002 patients with 2521 bypass grafts were the basis for this review. Results and Conclusion The sensitivity and specificity for the assessment of graft patency or the detection of > 50 % graft stenosis were 97.2 % and 97.5 %, respectively. The negative and positive predictive values were 93.6 % and 99 %, respectively. By using prospective ECG-gating and an increasing pitch factor, the radiation dose exposure declined to 2.4 mSv in the latest reports. ECG-gated MD-CTA provides a fast and reliable, noninvasive method for assessing patients after CABG. The most substantial benefit of the newest CT scanner generations is a remarkable reduction of radiation dose exposure while maintaining a still excellent diagnostic accuracy during recent years. Key Points  Citation Format

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