+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Radiation dose and image quality with abdominal computed tomography with automated dose-optimized tube voltage selection



Radiation dose and image quality with abdominal computed tomography with automated dose-optimized tube voltage selection



Journal of International Medical Research 42(4): 1011-1017



This study assessed image quality and radiation dose of multidetector computed tomography (CT) examination using a standard protocol and a low-voltage protocol. Patients requiring contrast-enhanced abdominal CT examination were randomly assigned to two groups with different voltage protocols: (i) 120 kV; (ii) an automated attenuation-based tube potential optimization mode (CARE kV). The volume CT dose index (CTDIvol) and dose length product (DLP) were recorded. Image quality was semiquantitatively assessed by two blinded radiologists using a five-point scale. There were 39 patients in the 120 kV group and 50 patients in the CARE kV group. There was no obvious difference in image quality score between the groups. CARE kV resulted in a voltage reduction to 100 kV in 45 patients and to 80 kV in five patients. CTDIvol and DLP were significantly lower with CARE kV than with the 120 kV protocol. The use of CARE kV reduces radiation dose with no loss of image quality compared with a standard 120 kV protocol.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 055343264

Download citation: RISBibTeXText

PMID: 24854605

DOI: 10.1177/0300060513496173


Related references

Automated tube voltage selection in thoracoabdominal computed tomography at high pitch using a third-generation dual-source scanner: image quality and radiation dose performance. Investigative Radiology 50(5): 352-360, 2015

Automated tube voltage adaptation in head and neck computed tomography between 120 and 100 kV: effects on image quality and radiation dose. Neuroradiology 56(9): 797-803, 2014

Automatic Tube Current Modulation and Tube Voltage Selection in Pediatric Computed Tomography: A Phantom Study on Radiation Dose and Image Quality. Investigative Radiology 54(5): 265-272, 2019

Performance of iterative reconstruction and automated tube voltage selection on the image quality and radiation dose in abdominal CT scans. Journal of Computer Assisted Tomography 37(6): 897-903, 2014

Extent of simultaneous radiation dose and iodine reduction at stable image quality in computed tomography of the chest: A systematic approach using automated tube voltage adaption and iterative reconstructions. Medicine 97(15): E0388, 2018

Automated tube voltage adaptation in combination with advanced modeled iterative reconstruction in thoracoabdominal third-generation 192-slice dual-source computed tomography: effects on image quality and radiation dose. Academic Radiology 22(9): 1081-1087, 2015

Improvement of image quality at low-radiation dose and low-contrast material dose abdominal CT in patients with cirrhosis: intraindividual comparison of low tube voltage with iterative reconstruction algorithm and standard tube voltage. Journal of Computer Assisted Tomography 36(4): 495-501, 2012

Image quality and radiation dose of brain computed tomography in children: effects of decreasing tube voltage from 120 kVp to 80 kVp. Pediatric Radiology 47(6): 710-717, 2017

Comparison of image quality and radiation dose in computed tomography angiography of the peripheral arteries using tube voltage of 80 kV versus 100 kV. Radiologia 56(6): 541-547, 2017

Effect of Tube Voltage (100 vs. 120 kVp) on Radiation Dose and Image Quality using Prospective Gating 320 Row Multi-detector Computed Tomography Angiography. Journal of Clinical Imaging Science 3: 62, 2013

Cardiac computed tomography angiography with automatic tube potential selection: effects on radiation dose and image quality. Journal of Thoracic Imaging 28(1): 40-48, 2013

Improved Image Quality and Decreased Radiation Dose of Lower Extremity Computed Tomography Angiography Using Low-Tube-Voltage and Adaptive Iterative Reconstruction. Journal of Computer Assisted Tomography 40(2): 272-276, 2016

Effect of automatic tube voltage selection on image quality and radiation dose in abdominal CT angiography of various body sizes: a phantom study. Clinical Radiology 68(2): E79-E86, 2013

Reduced radiation dose and improved image quality at cardiovascular CT angiography by automated attenuation-based tube voltage selection: intra-individual comparison. European Radiology 24(11): 2677-2684, 2014

Image quality and required radiation dose for coronary computed tomography angiography using an automatic tube potential selection technique. International Journal of Cardiovascular Imaging 30(Suppl. 2): 89-94, 2014