Oncologic applications of dual- energy CT in the abdomen

Mukta D. Agrawal, Daniella F. Pinho, Naveen M. Kulkarni, Peter F. Hahn, Alexander Guimaraes, Dushyant V. Sahani

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

Dual-energy computed tomographic (DECT) technology offers enhanced capabilities that may benefit oncologic imaging in the abdomen. By using two different energies, dual-energy CT allows material decomposition on the basis of energy-dependent attenuation profiles of specific materials. Although image acquisition with dualenergy CT is similar to that with single-energy CT, comprehensive postprocessing is able to generate not only images that are similar to single-energy CT (SECT) images, but a variety of other images, such as virtual unenhanced (VUE), virtual monochromatic (VMC), and material-specific iodine images. An increase in the conspicuity of iodine on low-energy VMC images and material-specific iodine images may aid detection and characterization of tumors. Use of VMC images of a desired energy level (40-140 keV) improves lesion-to-background contrast and the quality of vascular imaging for preoperative planning. Material-specific iodine images enable differentiation of hypoattenuating tumors from hypo- or hyperattenuating cysts and facilitate detection of isoattenuating tumors, such as pancreatic masses and peritoneal disease, thereby defining tumor targets for imaging-guided therapy. Moreover, quantitative iodine mapping may serve as a surrogate biomarker for monitoring effects of the treatment. Dual-energy CT is an innovative imaging technique that enhances the capabilities of CT in evaluating oncology patients.

Original languageEnglish (US)
Pages (from-to)589-612
Number of pages24
JournalRadiographics
Volume34
Issue number3
DOIs
StatePublished - 2014
Externally publishedYes

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Iodine
Abdomen
Neoplasms
Peritoneal Diseases
Pancreatic Diseases
Blood Vessels
Cysts
Biomarkers
Technology
Therapeutics

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Medicine(all)

Cite this

Agrawal, M. D., Pinho, D. F., Kulkarni, N. M., Hahn, P. F., Guimaraes, A., & Sahani, D. V. (2014). Oncologic applications of dual- energy CT in the abdomen. Radiographics, 34(3), 589-612. https://doi.org/10.1148/rg.343135041

Oncologic applications of dual- energy CT in the abdomen. / Agrawal, Mukta D.; Pinho, Daniella F.; Kulkarni, Naveen M.; Hahn, Peter F.; Guimaraes, Alexander; Sahani, Dushyant V.

In: Radiographics, Vol. 34, No. 3, 2014, p. 589-612.

Research output: Contribution to journalArticle

Agrawal, MD, Pinho, DF, Kulkarni, NM, Hahn, PF, Guimaraes, A & Sahani, DV 2014, 'Oncologic applications of dual- energy CT in the abdomen', Radiographics, vol. 34, no. 3, pp. 589-612. https://doi.org/10.1148/rg.343135041
Agrawal MD, Pinho DF, Kulkarni NM, Hahn PF, Guimaraes A, Sahani DV. Oncologic applications of dual- energy CT in the abdomen. Radiographics. 2014;34(3):589-612. https://doi.org/10.1148/rg.343135041
Agrawal, Mukta D. ; Pinho, Daniella F. ; Kulkarni, Naveen M. ; Hahn, Peter F. ; Guimaraes, Alexander ; Sahani, Dushyant V. / Oncologic applications of dual- energy CT in the abdomen. In: Radiographics. 2014 ; Vol. 34, No. 3. pp. 589-612.
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