Studies on the radiation dose, image quality and low contrast detectability from MSCT abdomen by using low tube voltage

Abstract Background To study radiation dose, image quality and low-contrast cylinder detectability from multislice CT (MSCT) abdomen by using low tube voltage using the American College of Radiology (ACR) phantom. The ACR phantom (low-contrast module) was scanned with 64 MSCT scanner (Brilliance, Ph...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	A. Mokhtar, Z. A. Aabdelbary, A. Sarhan, H. M. Gad, M. T. Ahmed
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Multislice CT Radiation dose Image qualityCT ACR phantom Medical physics. Medical radiology. Nuclear medicine R895-920
Acceso en línea:	https://doaj.org/article/aca2c517777d4b37b04fe1be4beb8a64
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:aca2c517777d4b37b04fe1be4beb8a64
record_format	dspace
spelling	oai:doaj.org-article:aca2c517777d4b37b04fe1be4beb8a642021-11-14T12:27:03ZStudies on the radiation dose, image quality and low contrast detectability from MSCT abdomen by using low tube voltage10.1186/s43055-021-00613-y2090-4762https://doaj.org/article/aca2c517777d4b37b04fe1be4beb8a642021-11-01T00:00:00Zhttps://doi.org/10.1186/s43055-021-00613-yhttps://doaj.org/toc/2090-4762Abstract Background To study radiation dose, image quality and low-contrast cylinder detectability from multislice CT (MSCT) abdomen by using low tube voltage using the American College of Radiology (ACR) phantom. The ACR phantom (low-contrast module) was scanned with 64 MSCT scanner (Brilliance, Philips Medical System, Eindhoven, Netherlands) with 80 and 120 KVP, utilizing different tube current time product (mAs) range from 50 to 380 mAs. The image noise (SD), signal to noise ratio, contrast-to-noise ratio (CNR), and scores of low contrast detectability were assessed for every image respectively. Results From images analyses, the noise essentially increased with the use of low tube voltage. The CNR was 0.94 ± 0.27 at 120 KVP, and CNR was 0.43 ± 0.22 at 80 KVP. However, with the same dose, there were no differences of statistical significance in scores of low-contrast detectability between 120 KVP at 300mAs and 80 KVP at (200–380) mAs (p > 0.05). At 300 mAs, the CTDIvol obtained at 80 KVP was about 29% of that at 120 KVP. The CTDIvol obtained at 80 KVP were decreased from 5% at 50 mAs, to 37% at 380 mAs. Conclusions There is a possibility to decrease exposure of radiation virtually by reducing KVP from 120 to 80 KVP in examination of abdominal CT when the high tube current is used, though increasing image noise at low tube voltage.A. MokhtarZ. A. AabdelbaryA. SarhanH. M. GadM. T. AhmedSpringerOpenarticleMultislice CTRadiation doseImage qualityCT ACR phantomMedical physics. Medical radiology. Nuclear medicineR895-920ENThe Egyptian Journal of Radiology and Nuclear Medicine, Vol 52, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Multislice CT Radiation dose Image qualityCT ACR phantom Medical physics. Medical radiology. Nuclear medicine R895-920
spellingShingle	Multislice CT Radiation dose Image qualityCT ACR phantom Medical physics. Medical radiology. Nuclear medicine R895-920 A. Mokhtar Z. A. Aabdelbary A. Sarhan H. M. Gad M. T. Ahmed Studies on the radiation dose, image quality and low contrast detectability from MSCT abdomen by using low tube voltage
description	Abstract Background To study radiation dose, image quality and low-contrast cylinder detectability from multislice CT (MSCT) abdomen by using low tube voltage using the American College of Radiology (ACR) phantom. The ACR phantom (low-contrast module) was scanned with 64 MSCT scanner (Brilliance, Philips Medical System, Eindhoven, Netherlands) with 80 and 120 KVP, utilizing different tube current time product (mAs) range from 50 to 380 mAs. The image noise (SD), signal to noise ratio, contrast-to-noise ratio (CNR), and scores of low contrast detectability were assessed for every image respectively. Results From images analyses, the noise essentially increased with the use of low tube voltage. The CNR was 0.94 ± 0.27 at 120 KVP, and CNR was 0.43 ± 0.22 at 80 KVP. However, with the same dose, there were no differences of statistical significance in scores of low-contrast detectability between 120 KVP at 300mAs and 80 KVP at (200–380) mAs (p > 0.05). At 300 mAs, the CTDIvol obtained at 80 KVP was about 29% of that at 120 KVP. The CTDIvol obtained at 80 KVP were decreased from 5% at 50 mAs, to 37% at 380 mAs. Conclusions There is a possibility to decrease exposure of radiation virtually by reducing KVP from 120 to 80 KVP in examination of abdominal CT when the high tube current is used, though increasing image noise at low tube voltage.
format	article
author	A. Mokhtar Z. A. Aabdelbary A. Sarhan H. M. Gad M. T. Ahmed
author_facet	A. Mokhtar Z. A. Aabdelbary A. Sarhan H. M. Gad M. T. Ahmed
author_sort	A. Mokhtar
title	Studies on the radiation dose, image quality and low contrast detectability from MSCT abdomen by using low tube voltage
title_short	Studies on the radiation dose, image quality and low contrast detectability from MSCT abdomen by using low tube voltage
title_full	Studies on the radiation dose, image quality and low contrast detectability from MSCT abdomen by using low tube voltage
title_fullStr	Studies on the radiation dose, image quality and low contrast detectability from MSCT abdomen by using low tube voltage
title_full_unstemmed	Studies on the radiation dose, image quality and low contrast detectability from MSCT abdomen by using low tube voltage
title_sort	studies on the radiation dose, image quality and low contrast detectability from msct abdomen by using low tube voltage
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/aca2c517777d4b37b04fe1be4beb8a64
work_keys_str_mv	AT amokhtar studiesontheradiationdoseimagequalityandlowcontrastdetectabilityfrommsctabdomenbyusinglowtubevoltage AT zaaabdelbary studiesontheradiationdoseimagequalityandlowcontrastdetectabilityfrommsctabdomenbyusinglowtubevoltage AT asarhan studiesontheradiationdoseimagequalityandlowcontrastdetectabilityfrommsctabdomenbyusinglowtubevoltage AT hmgad studiesontheradiationdoseimagequalityandlowcontrastdetectabilityfrommsctabdomenbyusinglowtubevoltage AT mtahmed studiesontheradiationdoseimagequalityandlowcontrastdetectabilityfrommsctabdomenbyusinglowtubevoltage
_version_	1718429250009169920

Studies on the radiation dose, image quality and low contrast detectability from MSCT abdomen by using low tube voltage

Ejemplares similares