DICOM structured report to track patient's radiation dose to organs from abdominal CT exam

2011 ◽  
Author(s):  
Craig Morioka ◽  
Adam Turner ◽  
Michael McNitt-Gray ◽  
Maria Zankl ◽  
Frank Meng ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Abdominal Ct ◽  
Structured Report

Study on the Radiation Dose of Abdominal CT Scan Using Dual Energy

2018 ◽  
Vol 20 (2) ◽  
pp. 123-132
Author(s):  
Dae-hyun Park ◽  
Young-Kyoon Kim ◽  
Jong-Ho Ahn ◽  
Kwang-Hyun Chang ◽  
Yoon-Chul Nam ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Ct Scan ◽  
Dual Energy ◽  
Abdominal Ct ◽  
Abdominal Ct Scan

SU-E-I-74: Modality SR: Using the DICOM Radiation Dose Structured Report

2011 ◽  
Vol 38 (6Part5) ◽  
pp. 3412-3412
Author(s):  
R Paden ◽  
W Pavlicek ◽  
M Peter ◽  
T Boltz
Keyword(s):  
Radiation Dose ◽  
Structured Report

scholarly journals Readjustment of abdominal computed tomography protocols in a university hospital: impact on radiation dose

2015 ◽  
Vol 48 (5) ◽  
pp. 292-297 ◽  
Author(s):  
Ricardo Francisco Tavares Romano ◽  
Priscila Silveira Salvadori ◽  
Lucas Rios Torres ◽  
Elisa Almeida Sathler Bretas ◽  
Daniel Bekhor ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Radiation Dose ◽  
Clinical Suspicion ◽  
University Hospital ◽  
Abdominal Ct ◽  
Abdominal Computed Tomography ◽  
Computed Tomography Scans ◽  
Group A ◽  
Group B ◽  
Tomography Scan

AbstractObjective:To assess the reduction of estimated radiation dose in abdominal computed tomography following the implementation of new scan protocols on the basis of clinical suspicion and of adjusted images acquisition parameters.Materials and Methods:Retrospective and prospective review of reports on radiation dose from abdominal CT scans performed three months before (group A – 551 studies) and three months after (group B – 788 studies) implementation of new scan protocols proposed as a function of clinical indications. Also, the images acquisition parameters were adjusted to reduce the radiation dose at each scan phase. The groups were compared for mean number of acquisition phases, mean CTDIvol per phase, mean DLP per phase, and mean DLP per scan.Results:A significant reduction was observed for group B as regards all the analyzed aspects, as follows: 33.9%, 25.0%, 27.0% and 52.5%, respectively for number of acquisition phases, CTDIvol per phase, DLP per phase and DLP per scan (p < 0.001).Conclusion:The rational use of abdominal computed tomography scan phases based on the clinical suspicion in conjunction with the adjusted images acquisition parameters allows for a 50% reduction in the radiation dose from abdominal computed tomography scans.

Effect of low tube voltage and low iodine concentration abdominal CT on image quality and radiation dose in children: preliminary study

2019 ◽  
Vol 44 (5) ◽  
pp. 1928-1935 ◽  
Author(s):  
Sun Kyoung You ◽  
Young Hun Choi ◽  
Jung-Eun Cheon ◽  
Woo Sun Kim ◽  
In-One Kim ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Iodine Concentration ◽  
Abdominal Ct ◽  
Tube Voltage ◽  
Low Tube Voltage ◽  
Preliminary Study

scholarly journals Evaluation of reduced-dose CT for acute non-traumatic abdominal pain: evaluation of diagnostic accuracy in comparison to standard-dose CT

2017 ◽  
Vol 59 (1) ◽  
pp. 4-12 ◽  
Author(s):  
Ahmed E Othman ◽  
Malte Niklas Bongers ◽  
Dominik Zinsser ◽  
Christoph Schabel ◽  
Julian L Wichmann ◽  
...  
Keyword(s):  
Abdominal Pain ◽  
Image Quality ◽  
Radiation Dose ◽  
Diagnostic Accuracy ◽  
Standard Dose ◽  
Image Noise ◽  
Receiver Operating Curve ◽  
Diagnostic Confidence ◽  
Abdominal Ct ◽  
Reduced Dose

Background Patients with acute non-traumatic abdominal pain often undergo abdominal computed tomography (CT). However, abdominal CT is associated with high radiation exposure. Purpose To evaluate diagnostic performance of a reduced-dose 100 kVp CT protocol with advanced modeled iterative reconstruction as compared to a linearly blended 120 kVp protocol for assessment of acute, non-traumatic abdominal pain. Material and Methods Two radiologists assessed 100 kVp and linearly blended 120 kVp series of 112 consecutive patients with acute non-traumatic pain (onset < 48 h) regarding image quality, noise, and artifacts on a five-point Likert scale. Both radiologists assessed both series for abdominal pathologies and for diagnostic confidence. Both 100 kVp and linearly blended 120 kVp series were quantitatively evaluated regarding radiation dose and image noise. Comparative statistics and diagnostic accuracy was calculated using receiver operating curve (ROC) statistics, with final clinical diagnosis/clinical follow-up as reference standard. Results Image quality was high for both series without detectable significant differences ( P = 0.157). Image noise and artifacts were rated low for both series but significantly higher for 100 kVp ( P ≤ 0.021). Diagnostic accuracy was high for both series (120 kVp: area under the curve [AUC] = 0.950, sensitivity = 0.958, specificity = 0.941; 100 kVp: AUC ≥ 0.910, sensitivity ≥ 0.937, specificity = 0.882; P ≥ 0.516) with almost perfect inter-rater agreement (Kappa = 0.939). Diagnostic confidence was high for both dose levels without significant differences (100 kVp 5, range 4–5; 120 kVp 5, range 3–5; P = 0.134). The 100 kVp series yielded 26.1% lower radiation dose compared with the 120 kVp series (5.72 ± 2.23 mSv versus 7.75 ± 3.02 mSv, P < 0.001). Image noise was significantly higher in reduced-dose CT (13.3 ± 2.4 HU versus 10.6 ± 2.1 HU; P < 0.001). Conclusion Reduced-dose abdominal CT using 100 kVp yields excellent image quality and high diagnostic accuracy for the assessment of acute non-traumatic abdominal pain.

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