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MR liver imaging and cholangiography in the presence of surgical metallic clips at 1.5 and 3 Tesla.

Publication ,  Journal Article
Merkle, EM; Dale, BM; Thomas, J; Paulson, EK
Published in: Eur Radiol
October 2006

To evaluate whether clips from prior cholecystectomy impair image quality during magnetic resonance cholangiography (MRC) at 3 Tesla (T) compared with 1.5 T, surgical clips were embedded in a gel phantom and positioned at predefined distances from a fluid-filled tube designed to simulate the bile duct. The maximum clip distance was noted where susceptibility artifacts obscured the fluid-filled tube at 1.5 T and 3 T. Susceptibility artifact size was calculated for each sequence within each magnet class. In vivo analysis included 42 patients postcholecystectomy who underwent MRC at either 1.5 T or 3 T. In vitro, mean area of susceptibility artifacts was 104 mm2 on 3-T and 75 mm2 on 1.5-T MR imaging (MRI). While surgical clips within a 2-mm range impaired visualization of the fluid-filled tube on 1.5-T MRI, this range increased to 4 mm on 3-T MRI. In vivo, MRC image quality was impaired by susceptibility artifacts in three of 21 cases at 3 T and in two of 21 cases at 1.5 T. Overall, biliary pseudo-obstructions due to susceptibility artifacts from cholecystectomy surgical clips were not substantially more common on 3-T MRC in clinical practice, and patients with a history of prior cholecystectomy should not be excluded from a 3-T MRC.

Duke Scholars

Published In

Eur Radiol

DOI

ISSN

0938-7994

Publication Date

October 2006

Volume

16

Issue

10

Start / End Page

2309 / 2316

Location

Germany

Related Subject Headings

  • Surgical Instruments
  • Radiography
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Middle Aged
  • Metals
  • Male
  • Magnetic Resonance Imaging
  • Imaging, Three-Dimensional
  • Image Processing, Computer-Assisted
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Merkle, E. M., Dale, B. M., Thomas, J., & Paulson, E. K. (2006). MR liver imaging and cholangiography in the presence of surgical metallic clips at 1.5 and 3 Tesla. Eur Radiol, 16(10), 2309–2316. https://doi.org/10.1007/s00330-006-0234-1
Merkle, Elmar M., Brian M. Dale, John Thomas, and Erik K. Paulson. “MR liver imaging and cholangiography in the presence of surgical metallic clips at 1.5 and 3 Tesla.Eur Radiol 16, no. 10 (October 2006): 2309–16. https://doi.org/10.1007/s00330-006-0234-1.
Merkle EM, Dale BM, Thomas J, Paulson EK. MR liver imaging and cholangiography in the presence of surgical metallic clips at 1.5 and 3 Tesla. Eur Radiol. 2006 Oct;16(10):2309–16.
Merkle, Elmar M., et al. “MR liver imaging and cholangiography in the presence of surgical metallic clips at 1.5 and 3 Tesla.Eur Radiol, vol. 16, no. 10, Oct. 2006, pp. 2309–16. Pubmed, doi:10.1007/s00330-006-0234-1.
Merkle EM, Dale BM, Thomas J, Paulson EK. MR liver imaging and cholangiography in the presence of surgical metallic clips at 1.5 and 3 Tesla. Eur Radiol. 2006 Oct;16(10):2309–2316.
Journal cover image

Published In

Eur Radiol

DOI

ISSN

0938-7994

Publication Date

October 2006

Volume

16

Issue

10

Start / End Page

2309 / 2316

Location

Germany

Related Subject Headings

  • Surgical Instruments
  • Radiography
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Middle Aged
  • Metals
  • Male
  • Magnetic Resonance Imaging
  • Imaging, Three-Dimensional
  • Image Processing, Computer-Assisted