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Pediatric Radiology

, Volume 43, Issue 9, pp 1086–1092 | Cite as

Comparison of respiratory-triggered 3-D fast spin-echo and single-shot fast spin-echo radial slab MR cholangiopancreatography images in children

  • Govind B. ChavhanEmail author
  • Abeer Almehdar
  • Rahim Moineddin
  • Sumeet Gupta
  • Paul S. Babyn
Original Article

Abstract

Background

The two most commonly performed magnetic resonance cholangiopancreatography (MRCP) sequences, 3-D fast spin-echo (3-D FSE) and single-shot fast spin-echo radial slabs (radial slabs), have not been compared in children.

Objective

The purpose of this study was to compare 3-D FSE and radial slabs MRCP sequences on a 3-T scanner to determine their ability to show various segments of pancreaticobiliary tree and presence of artifacts in children.

Materials and methods

We reviewed 79 consecutive MRCPs performed in 74 children on a 3-T scanner. We noted visibility of major ducts on 3-D FSE and radial slabs. We noted the order of branching of ducts in the right and left hepatic ducts and the degree of visibility of the pancreatic duct. Statistical analysis was performed using McNemar and signed rank tests.

Results

There was no significant difference in the visibility of major bile ducts and the order of branching in the right hepatic lobe between sequences. A higher order of branching in the left lobe was seen on radial slabs than 3-D FSE (mean order of branching 2.82 versus 2.27; P-value = 0.0002). The visibility of pancreatic duct was better on radial slabs as compared to 3-D FSE (mean value of 1.53 vs. 0.90; P-value < 0.0001). 3-D FSE sequence was artifact‐free in 25/79 (31.6%) MRCP exams as compared to radial slabs, which were artifact-free in 18/79 (22.8%) MRCP exams (P-value = 0.0001).

Conclusion

There is no significant difference in the visibility of major bile ducts between 3-D FSE and radial slab MRCP sequences at 3-T in children. However, radial slab MRCP shows a higher order of branching in the left hepatic lobe and superior visibility of the pancreatic duct than 3-D FSE.

Keywords

MRCP Children 3-D FSE Single-shot radial slabs 3 tesla (3 T) 

Notes

Conflicts of interest

None

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Govind B. Chavhan
    • 1
    Email author
  • Abeer Almehdar
    • 1
  • Rahim Moineddin
    • 2
  • Sumeet Gupta
    • 1
  • Paul S. Babyn
    • 3
  1. 1.Department of Diagnostic ImagingThe Hospital for Sick Children and University of TorontoTorontoCanada
  2. 2.Department of Family and Community MedicineUniversity of TorontoTorontoCanada
  3. 3.Department of Medical ImagingRoyal University HospitalSaskatoonCanada

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