Comparison of contrast enhancement and image quality using different contrast administration protocols for routine abdominal Computed Tomography (CT) in two centers

Background: Computed tomography (CT) scanning is a diagnostic imaging procedure that uses x-rays to build images of the body. CT scanning is an extremely common imaging modality in modern medicine. Contrast enhancement is the key component in CT scanning which helps to distinguish abnormal from n...

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Main Author:	Sian, Poh Choon
Format:	Thesis
Language:	English
Published:	2021
Subjects:	R Medicine
Online Access:	http://eprints.usm.my/60619/1/Poh%20Choon%20Sian-E.pdf
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spelling	my-usm-ep.606192024-07-03T03:59:34Z Comparison of contrast enhancement and image quality using different contrast administration protocols for routine abdominal Computed Tomography (CT) in two centers 2021 Sian, Poh Choon R Medicine RA440-440.87 Study and teaching. Research Background: Computed tomography (CT) scanning is a diagnostic imaging procedure that uses x-rays to build images of the body. CT scanning is an extremely common imaging modality in modern medicine. Contrast enhancement is the key component in CT scanning which helps to distinguish abnormal from normal body structure. Numerous interacting factors can affect the quality of CECT images, which may be divided into three categories: patient, contrast medium and CT scanning. A lack of standardization has resulted in heterogeneous dosing regimens across radiology practices. The purpose of this study is to compare the effect of the two different scanning protocols mentioned above on the contrast enhancement and image quality of CECT abdomen. Methods: A cross-sectional study was conducted in Hospital Universiti Sains Malaysia (HUSM), Kota Bharu, Kelantan, Malaysia and Advanced Medical and Dental Institute (AMDI), Kepala Batas, Penang, Malaysia on 336 patients aged 18 and above with contrast-enhanced CT (CECT) scan of abdomen between January 2017 and December 2019. Images of the CECT abdomen using different protocol were collected retrospectively from these two centres: 168 patients from HUSM, using fixed contrast volume with fixed time-delay technique, and 168 patients from AMDI using weight-based contrast volume with automatic bolus tracking technique. Quantitative assessment was performed by measuring the degree of enhancement in region of interest and were quantified in Hounsfield unit (HU). Mean enhancement values from each protocol was assessed and compared using independent t-test. Qualitative assessment was performed in which the images will be graded by radiologist using 4 2021 Thesis http://eprints.usm.my/60619/ http://eprints.usm.my/60619/1/Poh%20Choon%20Sian-E.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Perubatan
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	R Medicine R Medicine
spellingShingle	R Medicine R Medicine Sian, Poh Choon Comparison of contrast enhancement and image quality using different contrast administration protocols for routine abdominal Computed Tomography (CT) in two centers
description	Background: Computed tomography (CT) scanning is a diagnostic imaging procedure that uses x-rays to build images of the body. CT scanning is an extremely common imaging modality in modern medicine. Contrast enhancement is the key component in CT scanning which helps to distinguish abnormal from normal body structure. Numerous interacting factors can affect the quality of CECT images, which may be divided into three categories: patient, contrast medium and CT scanning. A lack of standardization has resulted in heterogeneous dosing regimens across radiology practices. The purpose of this study is to compare the effect of the two different scanning protocols mentioned above on the contrast enhancement and image quality of CECT abdomen. Methods: A cross-sectional study was conducted in Hospital Universiti Sains Malaysia (HUSM), Kota Bharu, Kelantan, Malaysia and Advanced Medical and Dental Institute (AMDI), Kepala Batas, Penang, Malaysia on 336 patients aged 18 and above with contrast-enhanced CT (CECT) scan of abdomen between January 2017 and December 2019. Images of the CECT abdomen using different protocol were collected retrospectively from these two centres: 168 patients from HUSM, using fixed contrast volume with fixed time-delay technique, and 168 patients from AMDI using weight-based contrast volume with automatic bolus tracking technique. Quantitative assessment was performed by measuring the degree of enhancement in region of interest and were quantified in Hounsfield unit (HU). Mean enhancement values from each protocol was assessed and compared using independent t-test. Qualitative assessment was performed in which the images will be graded by radiologist using 4
format	Thesis
qualification_level	Master's degree
author	Sian, Poh Choon
author_facet	Sian, Poh Choon
author_sort	Sian, Poh Choon
title	Comparison of contrast enhancement and image quality using different contrast administration protocols for routine abdominal Computed Tomography (CT) in two centers
title_short	Comparison of contrast enhancement and image quality using different contrast administration protocols for routine abdominal Computed Tomography (CT) in two centers
title_full	Comparison of contrast enhancement and image quality using different contrast administration protocols for routine abdominal Computed Tomography (CT) in two centers
title_fullStr	Comparison of contrast enhancement and image quality using different contrast administration protocols for routine abdominal Computed Tomography (CT) in two centers
title_full_unstemmed	Comparison of contrast enhancement and image quality using different contrast administration protocols for routine abdominal Computed Tomography (CT) in two centers
title_sort	comparison of contrast enhancement and image quality using different contrast administration protocols for routine abdominal computed tomography (ct) in two centers
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Perubatan
publishDate	2021
url	http://eprints.usm.my/60619/1/Poh%20Choon%20Sian-E.pdf
_version_	1804888976165699584

Comparison of contrast enhancement and image quality using different contrast administration protocols for routine abdominal Computed Tomography (CT) in two centers

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