Effect of automatic tube voltage selection on image quality and radiation dose in abdominal CT angiography of various body sizes: A phantom study

Overview of CT technologies for children

“…There has been limited work with this kV selection tool in pediatrics [12,13]. Dose reductions of up to about 55% have been achieved in CT angiography [11]. Researchers recently investigated this technology and found that when used appropriately it resulted in a decreased radiation dose and improved image quality compared with a fixed standard protocol using tube current modulations alone and a kVp of 120 [14].…”

“…Peak kilovoltage (kVp) selection is a relatively new technology based on optimizing tube potential and tube current (mA) to balance image contrast and noise based on a userselected diagnostic task [10,11]. This technology ideally will, based on a preset image quality and the patient topogram localizer, take the desired scan quality input by the user (e.g., for CT angiography vs. bone evaluation vs. a contrastenhanced abdomen study) and automatically adjust kVp, which may range down to 70, and mA (or mA time product, mAs) to deliver improved image quality at an equal or lower dose (as determined by the CT dose index).…”

Effects of automatic tube potential selection on radiation dose index, image quality, and lesion detectability in pediatric abdominopelvic CT and CTA: a phantom study

“…Recent investigations of ATPS addressing adult contrastenhanced CT and CTA have shown consistent tube potential reduction and radiation dose savings [4,[17][18][19][20][21]. Siegel et al recently reported a mean 56 % dose reduction in paediatric phantom CTA [22] and a median 27 % dose reduction in paediatric chest and abdominal CT and CTA using ATPS [23].…”

“…Substantial radiation dose reductions with maintained or improved image quality have been demonstrated with adult contrast-enhanced computed tomography (CT) [1][2][3] and CT angiography (CTA) [4][5][6][7][8][9] by lowering CT tube potentials. With smaller cross sectional areas, kVp (kilovoltage peak) reduction has even more potential for dose savings in children Electronic supplementary material The online version of this article (doi:10.1007/s00330-015-3817-x) contains supplementary material, which is available to authorized users.…”

Toraks Bilgisayarlı Tomografide Radyasyon Doz Azaltımı

“…In other words, dose reduction is possible if there is a sufficient image quality . Recently, it has been demonstrated that low and medium dose reduction is possible by CT protocols and developed softwares [1][2][3][4][5][6][8][9][10][11][12][13][14][15][16][17] , and the recent expectation is to provide advanced dose reduction 7 . It is important to determine the necessary parameters and to know its contribution to dose reduction in order to be able to develop techniques and software programs for CT dose reduction.…”