Dose reduction in computed tomographic angiography of pregnant patients with suspected acute pulmonary embolism

Journal of Computer Assisted Tomography
Diana LitmanovichVassilios Raptopoulos

Abstract

The aim of this study was to quantify the effect of a reduced-dose pulmonary computed tomographic (CT) angiography protocol on radiation dose and image quality in pregnant patients as compared with a standard protocol. Twenty-six pregnant women with suspected pulmonary embolism underwent reduced-dose CT angiography (200 mA and 100 kV, from the aortic arch to the diaphragm). The matched control group standard protocol was 400 mA, 120 kilovolt (peak), and the entire thorax. The CT dose index, dose-length product, effective dose, image quality, and signal-to-noise ratio were assessed and compared with the Wilcoxon rank sum test result. The CT dose index, mean dose-length product, and calculated effective dose were lower in the pregnancy group than in the controls: mean (SD), 5.21 (1.54) mGy versus 20.86 (5.59) mGy; 105.65 (39.77) mGy cm versus 575.71 (154.86) mGy cm, and 1.79 (0.676) msv versus 9.787 (2.63) msv, respectively (P < 0.0001). Quality scores of segmental (P = 0.266) and subsegmental (P = 0.207) arteries and arterial attenuation (P = 0.443) were similar. In pregnant patients with suspected pulmonary embolism, combined reduction of kilovoltage and milliampere-second settings and z-axis coverage results in a substantial r...Continue Reading

References

Jul 11, 1996·The New England Journal of Medicine·M R Toglia, J G Weg
Jul 31, 2002·Radiology·Helen T Winer-MuramGerard T Lombardo
Feb 20, 2003·Circulation·Richard L MorinCynthia H McCollough
Nov 25, 2003·AJR. American Journal of Roentgenology·M E SchusterP M Boiselle
Feb 5, 2005·Pathophysiology of Haemostasis and Thrombosis·Sabine Eichinger
Mar 15, 2005·Clinical Chemistry·Jeffrey A KlineJackeline Hernandez-Nino
Aug 6, 2005·BMJ : British Medical Journal·J Valmai Cook, John Kyriou
Sep 27, 2005·Radiology·Mannudeep K KalraSuzanne L Aquino
Oct 26, 2005·AJR. American Journal of Roentgenology·Mark S ParkerNarinder N Sethi
Dec 17, 2005·Clinical Radiology·A F ScarsbrookF V Gleeson
Feb 25, 2006·AJR. American Journal of Roentgenology·Lynne M HurwitzLottie Barnes
Mar 1, 2006·Radiology·Gregory T Sica
May 23, 2006·AJR. American Journal of Roentgenology·Lynne M HurwitzPhilip C Goodman
Jul 25, 2008·European Radiology·Jean Marie U-King-ImHeok K Cheow

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Citations

Nov 17, 2011·American Journal of Respiratory and Critical Care Medicine·Ann N LeungUNKNOWN ATS/STR Committee on Pulmonary Embolism in Pregnancy
Aug 24, 2010·AJR. American Journal of Roentgenology·Kaushik ShahirRobert S Hellman
Sep 24, 2011·AJR. American Journal of Roentgenology·Diana LitmanovichAlexander A Bankier
Feb 26, 2013·AJR. American Journal of Roentgenology·Patrick M CollettiUri Elkayam
Dec 29, 2013·AJR. American Journal of Roentgenology·Ann Michelle BrowneJoseph M Murphy
Feb 26, 2013·AJR. American Journal of Roentgenology·John Mayo, Yogesh Thakur
Mar 10, 2009·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Jay K PahadePhillip M Boiselle
Feb 1, 2011·Clinics in Chest Medicine·Margaret A MillerGhada Bourjeily
Oct 16, 2015·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Nikki TiradaRobert K Zeman
Oct 6, 2010·Seminars in Nuclear Medicine·Geoffrey P SchembriRichard Smart
Sep 28, 2010·Journal of Vascular Surgery·Palma ShawKathleen Ozsvath
Nov 15, 2017·Current Treatment Options in Cardiovascular Medicine·Theodore PierceBrian Ghoshhajra
Jan 27, 2017·The Cochrane Database of Systematic Reviews·Thijs E van MensSaskia Middeldorp
May 6, 2017·Emergency Radiology·Yoel SiegelGary Danton
Nov 18, 2019·Revue des maladies respiratoires·P-M RoyUNKNOWN groupe de travail Recommandations de bonne pratique pour la prise en charge de la MVTE
May 31, 2014·Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine·Kostas PerisinakisJohn Damilakis

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