Ultra-low-dose emergency chest computed tomography protocols in three vendors: A technical note

Bo Mussmann; Peter Marshall Skov; Morten H Lorentzen; Helene Skjøt-Arkil; Ole Graumann; Michael B Andersen; Janni Jensen

doi:10.1177/20584601231183900

Ultra-low-dose emergency chest computed tomography protocols in three vendors: A technical note

Bo Mussmann, Peter Marshall Skov, Morten H Lorentzen, Helene Skjøt-Arkil, Ole Graumann, Michael B Andersen, Janni Jensen

Røntgen og Skanning

Abstract

BACKGROUND: In suspected community-acquired pneumonia (CAP), chest CT is superior to the routinely obtained radiographs (CXR), but administers higher radiation doses. However, ultra-low-dose CT (ULDCT) has shown promising results.

PURPOSE: To compare radiation dose and image quality using standard and ULDCT protocols designed for a multicenter study encompassing three CT scanner models from GE, Canon, and Siemens.

MATERIAL AND METHODS: Patients with suspected CAP were referred for non-contrast standard dose chest CT (NCCT) and ULDCT. Effective radiation dose and Contrast-to-Noise Ratio (CNR) was calculated.

RESULTS: Mean effective doses were GE (n = 10) 6.93 mSv in NCCT and 0.27 mSv in ULDCT; Canon (n = 9) 3.48 in mSv NCCT and 1.11 mSv in ULDCT; Siemens (n = 10) 2.85 mSv in NCCT and 0.45 mSv in ULDCT. CNR was reduced by 29-39% in ULDCT.

CONCLUSION: The proposed CT protocols yielded dose reductions of 96%, 68%, and 84% using a GE, Canon, and Siemens scanner, respectively.

Originalsprog	Engelsk
Tidsskrift	Acta Radiologica Open
Vol/bind	12
Udgave nummer	3
Sider (fra-til)	20584601231183900
ISSN	2058-4601
DOI	https://doi.org/10.1177/20584601231183900
Status	Udgivet - mar. 2023

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10.1177/20584601231183900Licens: CC BY-NC

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title = "Ultra-low-dose emergency chest computed tomography protocols in three vendors: A technical note",

abstract = "BACKGROUND: In suspected community-acquired pneumonia (CAP), chest CT is superior to the routinely obtained radiographs (CXR), but administers higher radiation doses. However, ultra-low-dose CT (ULDCT) has shown promising results.PURPOSE: To compare radiation dose and image quality using standard and ULDCT protocols designed for a multicenter study encompassing three CT scanner models from GE, Canon, and Siemens.MATERIAL AND METHODS: Patients with suspected CAP were referred for non-contrast standard dose chest CT (NCCT) and ULDCT. Effective radiation dose and Contrast-to-Noise Ratio (CNR) was calculated.RESULTS: Mean effective doses were GE (n = 10) 6.93 mSv in NCCT and 0.27 mSv in ULDCT; Canon (n = 9) 3.48 in mSv NCCT and 1.11 mSv in ULDCT; Siemens (n = 10) 2.85 mSv in NCCT and 0.45 mSv in ULDCT. CNR was reduced by 29-39% in ULDCT.CONCLUSION: The proposed CT protocols yielded dose reductions of 96%, 68%, and 84% using a GE, Canon, and Siemens scanner, respectively.",

author = "Bo Mussmann and Skov, {Peter Marshall} and Lorentzen, {Morten H} and Helene Skj{\o}t-Arkil and Ole Graumann and Andersen, {Michael B} and Janni Jensen",

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TY - JOUR

T1 - Ultra-low-dose emergency chest computed tomography protocols in three vendors

T2 - A technical note

AU - Mussmann, Bo

AU - Skov, Peter Marshall

AU - Lorentzen, Morten H

AU - Skjøt-Arkil, Helene

AU - Graumann, Ole

AU - Andersen, Michael B

AU - Jensen, Janni

PY - 2023/3

Y1 - 2023/3

N2 - BACKGROUND: In suspected community-acquired pneumonia (CAP), chest CT is superior to the routinely obtained radiographs (CXR), but administers higher radiation doses. However, ultra-low-dose CT (ULDCT) has shown promising results.PURPOSE: To compare radiation dose and image quality using standard and ULDCT protocols designed for a multicenter study encompassing three CT scanner models from GE, Canon, and Siemens.MATERIAL AND METHODS: Patients with suspected CAP were referred for non-contrast standard dose chest CT (NCCT) and ULDCT. Effective radiation dose and Contrast-to-Noise Ratio (CNR) was calculated.RESULTS: Mean effective doses were GE (n = 10) 6.93 mSv in NCCT and 0.27 mSv in ULDCT; Canon (n = 9) 3.48 in mSv NCCT and 1.11 mSv in ULDCT; Siemens (n = 10) 2.85 mSv in NCCT and 0.45 mSv in ULDCT. CNR was reduced by 29-39% in ULDCT.CONCLUSION: The proposed CT protocols yielded dose reductions of 96%, 68%, and 84% using a GE, Canon, and Siemens scanner, respectively.

AB - BACKGROUND: In suspected community-acquired pneumonia (CAP), chest CT is superior to the routinely obtained radiographs (CXR), but administers higher radiation doses. However, ultra-low-dose CT (ULDCT) has shown promising results.PURPOSE: To compare radiation dose and image quality using standard and ULDCT protocols designed for a multicenter study encompassing three CT scanner models from GE, Canon, and Siemens.MATERIAL AND METHODS: Patients with suspected CAP were referred for non-contrast standard dose chest CT (NCCT) and ULDCT. Effective radiation dose and Contrast-to-Noise Ratio (CNR) was calculated.RESULTS: Mean effective doses were GE (n = 10) 6.93 mSv in NCCT and 0.27 mSv in ULDCT; Canon (n = 9) 3.48 in mSv NCCT and 1.11 mSv in ULDCT; Siemens (n = 10) 2.85 mSv in NCCT and 0.45 mSv in ULDCT. CNR was reduced by 29-39% in ULDCT.CONCLUSION: The proposed CT protocols yielded dose reductions of 96%, 68%, and 84% using a GE, Canon, and Siemens scanner, respectively.

U2 - 10.1177/20584601231183900

DO - 10.1177/20584601231183900

M3 - Journal article

C2 - 37546523

SN - 2058-4601

VL - 12

SP - 20584601231183900

JO - Acta Radiologica Open

JF - Acta Radiologica Open

IS - 3

ER -

Ultra-low-dose emergency chest computed tomography protocols in three vendors: A technical note

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