Dose reduction using care dose4d technique of siemens dual-source computed tomography on pediatric congenital heart disease

Congenital heart defects (CHD) are the most prevalent birth defects. It is very important to diagnose CHD early and accurately so that patients can get timely and effective treatment. CT scan can accurately evaluate the anatomical structure and major malformations of the cardiac great vessels, th...

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Main Author:	Chen, HongYing
Format:	Thesis
Language:	English
Published:	2022
Subjects:	Tomography Scanners X-Ray Computed
Online Access:	http://psasir.upm.edu.my/id/eprint/103912/1/CHEN%20HONGYING%20-%20IR2.pdf
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id	my-upm-ir.103912
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spelling	my-upm-ir.1039122023-06-06T03:23:22Z Dose reduction using care dose4d technique of siemens dual-source computed tomography on pediatric congenital heart disease 2022-06 Chen, HongYing Congenital heart defects (CHD) are the most prevalent birth defects. It is very important to diagnose CHD early and accurately so that patients can get timely and effective treatment. CT scan can accurately evaluate the anatomical structure and major malformations of the cardiac great vessels, the adjacent relationship between the mediastinal organs and tissues from morphology, and quantitatively evaluate cardiac function. However, ionizing radiation is the biggest drawback in CT scanning. This research using a cross-sectional prospective study to investigate the value of Siemens dual-source Somatom Definition Flash CT scanner using CARE Dose4D technique in decreasing radiation dose and ensure image quality in pediatric CHD. There were two groups used Siemens dual-source Somatom Definition Flash CT scanner. The CARE Dose4D group (n=32) with CARE Dose4D technique with automatic modulated tube current and 80 kVp tube voltage, there were patients of angiography pulmonary and thorax CT scanning. Control group (n=42) (Data from previous research: Fan et al.,2020) using the retrospective electrocardiogram (ECG) triggered sequential technique with 100 mAs tube current and 70 kVp tube voltage. The volume CT dose index (CTDIvol) and dose length product (DLP) on each patient was recorded to calculate the effective dose (ED). Calculated image noise signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR). All images of 32 pediatric patients in the CARE Dose4D group were clear. The contrast medium density of superior vena cava was moderate, the CT values of all vessels were similar, and the contrast mediums in all atrioventricular and vascular were full, with clear boundaries, no effect on image reconstruction. The CNR values descending aorta of males was lower than females in CARE Dose4D group (P=0.022<0.05). According to the results of this study, we believe that CT examination combined with CARE Dose4D technology can be applied to CHD diagnosis, and the long-term monitoring of radiation dose is more important in practice. The X-ray radiation dose optimization of children and infants still needs in-depth research. Tomography Scanners, X-Ray Computed Heart Defects, Congenital 2022-06 Thesis http://psasir.upm.edu.my/id/eprint/103912/ http://psasir.upm.edu.my/id/eprint/103912/1/CHEN%20HONGYING%20-%20IR2.pdf text en public masters Universiti Putra Malaysia Tomography Scanners, X-Ray Computed Heart Defects, Congenital Bahari, Norafida
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
advisor	Bahari, Norafida
topic	Tomography Scanners X-Ray Computed Tomography Scanners X-Ray Computed
spellingShingle	Tomography Scanners X-Ray Computed Tomography Scanners X-Ray Computed Chen, HongYing Dose reduction using care dose4d technique of siemens dual-source computed tomography on pediatric congenital heart disease
description	Congenital heart defects (CHD) are the most prevalent birth defects. It is very important to diagnose CHD early and accurately so that patients can get timely and effective treatment. CT scan can accurately evaluate the anatomical structure and major malformations of the cardiac great vessels, the adjacent relationship between the mediastinal organs and tissues from morphology, and quantitatively evaluate cardiac function. However, ionizing radiation is the biggest drawback in CT scanning. This research using a cross-sectional prospective study to investigate the value of Siemens dual-source Somatom Definition Flash CT scanner using CARE Dose4D technique in decreasing radiation dose and ensure image quality in pediatric CHD. There were two groups used Siemens dual-source Somatom Definition Flash CT scanner. The CARE Dose4D group (n=32) with CARE Dose4D technique with automatic modulated tube current and 80 kVp tube voltage, there were patients of angiography pulmonary and thorax CT scanning. Control group (n=42) (Data from previous research: Fan et al.,2020) using the retrospective electrocardiogram (ECG) triggered sequential technique with 100 mAs tube current and 70 kVp tube voltage. The volume CT dose index (CTDIvol) and dose length product (DLP) on each patient was recorded to calculate the effective dose (ED). Calculated image noise signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR). All images of 32 pediatric patients in the CARE Dose4D group were clear. The contrast medium density of superior vena cava was moderate, the CT values of all vessels were similar, and the contrast mediums in all atrioventricular and vascular were full, with clear boundaries, no effect on image reconstruction. The CNR values descending aorta of males was lower than females in CARE Dose4D group (P=0.022<0.05). According to the results of this study, we believe that CT examination combined with CARE Dose4D technology can be applied to CHD diagnosis, and the long-term monitoring of radiation dose is more important in practice. The X-ray radiation dose optimization of children and infants still needs in-depth research.
format	Thesis
qualification_level	Master's degree
author	Chen, HongYing
author_facet	Chen, HongYing
author_sort	Chen, HongYing
title	Dose reduction using care dose4d technique of siemens dual-source computed tomography on pediatric congenital heart disease
title_short	Dose reduction using care dose4d technique of siemens dual-source computed tomography on pediatric congenital heart disease
title_full	Dose reduction using care dose4d technique of siemens dual-source computed tomography on pediatric congenital heart disease
title_fullStr	Dose reduction using care dose4d technique of siemens dual-source computed tomography on pediatric congenital heart disease
title_full_unstemmed	Dose reduction using care dose4d technique of siemens dual-source computed tomography on pediatric congenital heart disease
title_sort	dose reduction using care dose4d technique of siemens dual-source computed tomography on pediatric congenital heart disease
granting_institution	Universiti Putra Malaysia
publishDate	2022
url	http://psasir.upm.edu.my/id/eprint/103912/1/CHEN%20HONGYING%20-%20IR2.pdf
_version_	1776100381409935360

Dose reduction using care dose4d technique of siemens dual-source computed tomography on pediatric congenital heart disease

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