Low dose computed tomography pulmonary angiography protocol for imaging pregnant patients: Can dose reduction be achieved without reducing image quality?

Darragh Halpenny; Brian Park; Jeffrey Alpert; Larry Latson; Nancy Kim; James Babb; Maria Shiau; Jane Ko

doi:10.1016/j.clinimag.2017.03.020

Low dose computed tomography pulmonary angiography protocol for imaging pregnant patients: Can dose reduction be achieved without reducing image quality?

Darragh Halpenny, Brian Park, Jeffrey Alpert, Larry Latson, Nancy Kim, James Babb, Maria Shiau, Jane Ko

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Objective To assess the effect of low dose computed tomography pulmonary angiography (CTPA) on radiation dose in pregnant patients. Materials and methods An old CTPA protocol for pregnant patients was compared to a new protocol. Protocol changes included: decreased kVp; increased contrast injection rate; imaging after shallow inspiration. Patients undergoing CTPA before (phase 1 group) or after (phase 2 group) the protocol change, were assessed. Results Effective dose was lower in the phase 2 group (0.95 v 1.66 mSv; p < 0.001). Quantitative noise was lower in the phase 1 group (p < 0.001). Conclusion Low dose CTPA tailored for pregnancy reduces dose in pregnant patients.

Original language	English (US)
Pages (from-to)	101-105
Number of pages	5
Journal	Clinical Imaging
Volume	44
DOIs	https://doi.org/10.1016/j.clinimag.2017.03.020
State	Published - Jul 1 2017
Externally published	Yes

Keywords

Computed tomography
Image quality
Pregnancy
Pulmonary angiography
Radiation

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging

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10.1016/j.clinimag.2017.03.020

Cite this

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title = "Low dose computed tomography pulmonary angiography protocol for imaging pregnant patients: Can dose reduction be achieved without reducing image quality?",

abstract = "Objective To assess the effect of low dose computed tomography pulmonary angiography (CTPA) on radiation dose in pregnant patients. Materials and methods An old CTPA protocol for pregnant patients was compared to a new protocol. Protocol changes included: decreased kVp; increased contrast injection rate; imaging after shallow inspiration. Patients undergoing CTPA before (phase 1 group) or after (phase 2 group) the protocol change, were assessed. Results Effective dose was lower in the phase 2 group (0.95 v 1.66 mSv; p < 0.001). Quantitative noise was lower in the phase 1 group (p < 0.001). Conclusion Low dose CTPA tailored for pregnancy reduces dose in pregnant patients.",

keywords = "Computed tomography, Image quality, Pregnancy, Pulmonary angiography, Radiation",

author = "Darragh Halpenny and Brian Park and Jeffrey Alpert and Larry Latson and Nancy Kim and James Babb and Maria Shiau and Jane Ko",

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T1 - Low dose computed tomography pulmonary angiography protocol for imaging pregnant patients

T2 - Can dose reduction be achieved without reducing image quality?

AU - Halpenny, Darragh

AU - Park, Brian

AU - Alpert, Jeffrey

AU - Latson, Larry

AU - Kim, Nancy

AU - Babb, James

AU - Shiau, Maria

AU - Ko, Jane

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Objective To assess the effect of low dose computed tomography pulmonary angiography (CTPA) on radiation dose in pregnant patients. Materials and methods An old CTPA protocol for pregnant patients was compared to a new protocol. Protocol changes included: decreased kVp; increased contrast injection rate; imaging after shallow inspiration. Patients undergoing CTPA before (phase 1 group) or after (phase 2 group) the protocol change, were assessed. Results Effective dose was lower in the phase 2 group (0.95 v 1.66 mSv; p < 0.001). Quantitative noise was lower in the phase 1 group (p < 0.001). Conclusion Low dose CTPA tailored for pregnancy reduces dose in pregnant patients.

AB - Objective To assess the effect of low dose computed tomography pulmonary angiography (CTPA) on radiation dose in pregnant patients. Materials and methods An old CTPA protocol for pregnant patients was compared to a new protocol. Protocol changes included: decreased kVp; increased contrast injection rate; imaging after shallow inspiration. Patients undergoing CTPA before (phase 1 group) or after (phase 2 group) the protocol change, were assessed. Results Effective dose was lower in the phase 2 group (0.95 v 1.66 mSv; p < 0.001). Quantitative noise was lower in the phase 1 group (p < 0.001). Conclusion Low dose CTPA tailored for pregnancy reduces dose in pregnant patients.

KW - Computed tomography

KW - Image quality

KW - Pregnancy

KW - Pulmonary angiography

KW - Radiation

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Low dose computed tomography pulmonary angiography protocol for imaging pregnant patients: Can dose reduction be achieved without reducing image quality?

Abstract

Keywords

ASJC Scopus subject areas

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