1. Sample General Electric CT Dose Report from a CT of the chest, abdomen, and pelvis. The dose report contains information about the patient (deleted), type of scan (long arrow) and the machine used (short arrow). It also lists the series number (first column), imaging mode (axial vs helical, second column), the length of the scan (scan range, third column, in this case as table “I” positions, which are subtracted to get the length of the scan), the CTDIvol, (4th column), DLP (5th column), and the phantom used for dose estimation (in this case a 32-cm body phantom). The first row represents the scout images, which are acquired in projection mode (similar to radiography). The absence of CTDI and DLP values does not mean that the patient was not exposed to radiation, simply that the CTDI method does not apply to this type of image acquisition. The second row (series 200) represents the images obtained during real-time contrast tracking. This involves scanning a single slice of the patient continuously (in this case the abdominal aorta) and initiating additional scans based on the arrival of contrast. This is done to optimize contrast enhancement. The third through seventh rows show the different acquisitions that were placed into series 2 of this study. These included CT of the chest (third row), CT of the abdomen and pelvis (4th and 5th rows), delayed images through the kidneys to show excretion of contrast into the renal pelvis and proximal ureters (6th row), and delayed images through the pelvis to show excreted contrast in the urinary bladder (last row). The DLPs are summed and the total exam DLP generated. In this case the patient was exposed to mGy-cm.
Source: Overview of Diagnostic Modalities and Contrast Agents, Introduction to Diagnostic Radiology
Citation: Elsayes KM, Oldham SA. Introduction to Diagnostic Radiology; 2015 Available at: Accessed: November 06, 2017
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