Top

Abdominal Radiology

Published in:

01-04-2013

Routine use of precontrast and delayed acquisitions in abdominal CT: time for change

Authors: Pamela T. Johnson, Elliot K. Fishman

Published in: Abdominal Radiology | Issue 2/2013

Abstract

Objective

With major efforts being made to reduce radiation exposure in CT, one area of practice that requires additional improvement is limiting the number of acquisitions for body CT imaging. This review article defines best MDCT practice in terms of tailored abdominal CT protocols, designed to maximize lesion detection while limiting radiation exposure.

Conclusions

The literature defines optimal acquisitions for a range of abdominal CT indications, with precontrast and delayed acquisitions being least commonly indicated.

Foley WD, Mallisee TA, Hohenwalter MD, et al. (2000) Multiphase hepatic CT with a multirow detector CT scanner. AJR Am J Roentgenol 175:679–685PubMedCrossRef

Foley WD (2002) Special focus session: multidetector CT—abdominal visceral imaging. RadioGraphics 22:701–719PubMed

Francis IR, Cohan RH, McNulty NJ, et al. (2003) Multidetector CT of the liver and hepatic neoplasms: effect of multiphasic imaging on tumor conspicuity and vascular enhancement. AJR Am J Roentgenol 180:1217–1224PubMedCrossRef

Ichikawa T, Kitamura T, Nakajima H, et al. (2002) Hypervascular hepatocellular carcinoma: can double arterial phase imaging with multidetector CT improve tumor depiction in the cirrhotic liver? AJR Am J Roentgenol 179:751–758PubMedCrossRef

Laghi A, Iannaccone R, Rossi P, et al. (2003) Hepatocellular carcinoma: detection with triple-phase multi-detector row helical CT in patients with chronic hepatitis. Radiology 226:543–549PubMedCrossRef

McNulty NJ, Francis IR, Platt JF, et al. (2001) Multi-detector row helical CT of the pancreas: effect of contrast-enhanced multiphasic imaging on enhancement of the pancreas, peripancreatic vasculature and pancreatic adenocarcinoma. Radiology 220:97–102PubMed

Fletcher JG, Wiersema MJ, Farrell MA, et al. (2003) Pancreatic malignancy: value of arterial, pancreatic, and hepatic phase imaging with multi-detector row CT. Radiology 229:81–90PubMedCrossRef

Johnson PT, Fishman EK (2006) IV contrast selection for MDCT: current thoughts and practice. AJR Am J Roentgenol 186:406–415PubMedCrossRef

Kim MJ, Choi JY, Lim JS, et al. (2006) Optimal scan window for detection of hypervascular hepatocellular carcinomas during MDCT examination. AJR Am J Roentgenol 187:198–206PubMedCrossRef

10.

Soyer P, Poccard M, Boudiaf M, et al. (2004) Detection of hypovascular hepatic metastases at triple-phase helical CT: sensitivity of phases and comparison with surgical and histopathologic findings. Radiology 231:413–420PubMedCrossRef

11.

Miller FH, Butler RS, Hoff FL, et al. (1998) Using triphasic helical CT to detect focal hepatic lesions in patients with neoplasms. AJR Am J Roentgenol 171:643–649PubMedCrossRef

12.

Johnson PT, Horton KM, Fishman EK (2009) Adrenal imaging with multidetector CT: evidence-based protocol optimization and interpretative practice. Radiographics. 29:1319–1331PubMedCrossRef

13.

Blake MA, Cronin CG, Boland GW (2010) Adrenal imaging. AJR Am J Roentgenol 194:1450–1460PubMedCrossRef

14.

Golzarian J, Dussaussois L, Abada HT, et al. (1998) Helical CT of aorta after endoluminal stent-graft therapy: value of biphasic acquisition. AJR Am J Roentgenol 171:329–331PubMedCrossRef

15.

Rozenblit AM, Patlas M, Rosenbaum AT, et al. (2003) Detection of endoleaks after endovascular repair of abdominal aortic aneurysm: value of unenhanced and delayed helical CT acquisitions. Radiology 227:426–433PubMedCrossRef

16.

Birnbaum BA, Jacobs JE, Langlotz CP, Ramchandani P (1999) Assessment of a bolus-tracking technique in helical renal CT to optimize nephrographic phase imaging. Radiology 211:87–94PubMed

17.

Macari M, Chandarana H, Schmidt B, et al. (2006) Abdominal aortic aneurysm: can the arterial phase at CT evaluation after endovascular repair be eliminated to reduce radiation dose? Radiology 241:908–914PubMedCrossRef

Title: Routine use of precontrast and delayed acquisitions in abdominal CT: time for change
Authors: Pamela T. Johnson
Elliot K. Fishman
Publication date: 01-04-2013
Publisher: Springer-Verlag
Published in: Abdominal Radiology / Issue 2/2013
Print ISSN: 2366-004X
Electronic ISSN: 2366-0058
DOI: https://doi.org/10.1007/s00261-012-9964-5

ACC 2024 Congress Coverage

Heart Failure Video

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Routine use of precontrast and delayed acquisitions in abdominal CT: time for change

Abstract

Objective

Conclusions

ACC 2024 Congress Coverage

Year in Review: Heart failure and cardiomyopathies

Semaglutide benefits people with type 2 diabetes and obesity-related heart failure

Incentivised to exercise

New intervention for STEMI-related cardiogenic shock

» View more highlights on the ACC 2024 congress hub page

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Objective

Conclusions

Please log in to get access to this content

Other articles of this Issue 2/2013

Epithelioid angiomyolipoma of the liver: CT and MRI features

High intensity focused ultrasound (HIFU): call for careful patient selection!

Dose reduction methods for CT colonography

Pancreatic neuroendocrine neoplasm: correlation between computed tomography enhancement patterns and prognostic factors of surgical and endoscopic ultrasound-guided fine-needle aspiration biopsy specimens

Ovarian mucinous cystadenoma coexisting with benign Brenner tumor: MR imaging findings

Patterns of lymphatic drainage and lymph node involvement in esophageal cancer

ACC 2024 Congress Coverage

Year in Review: Heart failure and cardiomyopathies

Semaglutide benefits people with type 2 diabetes and obesity-related heart failure

Incentivised to exercise

New intervention for STEMI-related cardiogenic shock

» View more highlights on the ACC 2024 congress hub page