Evaluation of optimum scan delay for post-contrast cone beam computed tomography (CBCT) of the canine abdomen

Lau, Li Jiing (2017) Evaluation of optimum scan delay for post-contrast cone beam computed tomography (CBCT) of the canine abdomen. [Project Paper] (Submitted)

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Abstract

Cone beam computed tomography (CBCT) is an advanced imaging technology used for various clinical applications including research and diagnostic. The application of CBCT as a veterinary diagnostic tool particularly for soft tissue is under-utilized due to limited information available on the scanning protocol. Therefore the aim of this study is to determine the optimum scan delay for post-contrast study using CBCT for major blood vessels and various organs in the canine abdomen. Pre-contrast study was performed on three dogs and post-contrast images were obtained at different scan delay; 0 second, 30 seconds, 1 minute 30 seconds. Attenuation for blood vessels; aorta, caudal vena cava and portal vein and also abdominal organs; liver, spleen, and renal pelvis were measured in Hounsfield unit (HU). All blood vessels and abdominal organs were clearly visualized at 30 second delay. There was no contrast enhancement seen in blood vessels at 0 second although other abdominal organs were enhanced by contrast. The 30 seconds scan delay produced the similar contrast enhancement at 1 minute 30 seconds scan delay however we do not recommend this protocol due to safety issues related to contrast administration. In conclusion, CBCT can be optimized for evaluation of blood vessels and abdominal organs in dogs however a study with larger number of animals are warranted in the future. Establishment of post-contrast scanning protocol certainly would provide diagnostic values to small animal patients.

Item Type:	Project Paper
Faculty:	Faculty of Veterinary Medicine
Depositing User:	Ms. Nordeena Abdul Aziz
Date Deposited:	01 Mar 2023 03:45
Last Modified:	01 Mar 2023 03:45
URI:	http://psaspb.upm.edu.my/id/eprint/792

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