Effect of beam hardening on arterial enhancement in thoracoabdominal CT angiography with increasing patient size: an in vitro and in vivo study

Radiology
Sebastian T SchinderaZsolt Szucs-Farkas

Abstract

To assess the effect of beam hardening on arterial enhancement in thoracoabdominal computed tomographic (CT) angiography in various body sizes in a phantom and in a clinical study. An abdominal aortic phantom was placed in three cylindrical water containers simulating a small, an intermediate, and a large patient (diameters of 22, 30, and 40 cm, respectively). CT scanning was performed at 80, 100, and 120 kVp, and aortic attenuation was assessed. In a HIPAA-compliant institutional review board-approved study with waiver of informed consent, thoracoabdominal aortic attenuation was assessed in 100 consecutive patients (75 men, 25 women; mean body weight (BW), 79 kg) undergoing thoracoabdominal 64-section CT angiography at 80 kVp. Overall aortic attenuation in patients grouped according to BW (small patients [n = 26], <70 kg; intermediate patients [n = 41], 70-85 kg; large patients [n = 33], >85 kg) was compared. Overall aortic attenuation was correlated with BW, height, body mass index (BMI), body surface area (BSA), and lateral diameter by using linear regression. Comparison of the intermediate- and large-phantom groups relative to the small-phantom group indicated that mean aortic attenuation decreased by 9.7% and 13.4% at 80 k...Continue Reading

References

Dec 29, 2000·IEEE Transactions on Medical Imaging·H BruderT Flohr
Nov 13, 2004·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Julia F Barrett, Nicholas Keat
Jan 21, 2006·AJR. American Journal of Roentgenology·Daisuke UtsunomiyaYasuyuki Yamashita
May 23, 2006·AJR. American Journal of Roentgenology·Steven S RamanDavid S K Lu
Jul 25, 2006·AJR. American Journal of Roentgenology·Shigeto KuboKaori Togashi
Feb 22, 2008·AJR. American Journal of Roentgenology·Kyongtae T BaePamela K Woodard
Feb 7, 2009·Radiologic Clinics of North America·Dominik Fleischmann, Aya Kamaya

❮ Previous
Next ❯

Citations

Apr 27, 2013·AJR. American Journal of Roentgenology·Michael D BelandWilliam W Mayo-Smith
Dec 29, 2013·AJR. American Journal of Roentgenology·Masayuki KanematsuKyongtae T Bae
Aug 26, 2014·Radiology·Alec J MegibowNicole M Hindman
Sep 8, 2011·The International Journal of Cardiovascular Imaging·Mustafa R BashirRendon C Nelson
Sep 14, 2016·Advanced Drug Delivery Reviews·Benjamin M YehPeter J Bonitatibus
Nov 24, 2011·AJR. American Journal of Roentgenology·Narinder S PaulPatrik Rogalla
Nov 9, 2016·Journal of Computer Assisted Tomography·Jack W LambertBenjamin M Yeh
Dec 19, 2018·Journal of the Saudi Heart Association·Rami M AbazidMouaz H Al-Mallah
Aug 26, 2018·Abdominal Radiology·Khalid W ShaqdanDushyant V Sahani
Jan 12, 2021·Journal of Applied Clinical Medical Physics·Wen-Hui HuangChing-Ching Yang
Nov 20, 2020·European Radiology·Shanigarn ThiravitAchille Mileto
May 7, 2021·La Radiologia medica·Yuko NakamuraKazuo Awai

❮ Previous
Next ❯

Related Concepts

Related Feeds

Aortic Aneurysm

An aortic aneurysm is the weakening and bulging of the blood vessel wall in the aorta. This causes dilatation of the aorta, which is usually asymptomatic but carries the risk of rupture and hemorrhage. Find the latest research on aortic aneurysms here.

Cardiac Aneurysm

Aneurysm refers to a bulge of the wall or lining of a vessel commonly occurring in the blood vessels at the base of the septum or within the aorta. In the heart, it usually arises from a patch of weakened tissue in a ventricular wall, which swells into a bubble filled with blood. Discover the latest research on cardiac aneurysm here.