J Korean Soc Radiol.  2015 Jun;72(6):373-380. 10.3348/jksr.2015.72.6.373.

Comparative Diagnostic Performance of Multidetector Computed Tomography and MRI for Characterization of Pancreatic Cystic Lesions

Affiliations
  • 1Department of Radiology, Chonnam National University Hospital, Gwangju, Korea. parkjg@jnu.ac.kr
  • 2Department of Radiology, Chonnam National University Hwasun Hospital, Hwasun, Korea.
  • 3Department of Radiology, Chonnam National University Medical School, Gwangju, Korea.

Abstract

PURPOSE
To compare the diagnostic performance of multidetector computed tomography (MDCT) and magnetic resonance imaging (MRI) in characterization of pancreatic cystic lesions.
MATERIALS AND METHODS
We conducted a retrospective study on 34 patients with histopathologically proven cystic pancreatic lesions who underwent both preoperative MDCT and MRI. CT and MRI were independently evaluated for differentiating mucinous vs. non-mucinous lesions, differentiating aggressive vs. non-aggressive lesion, analyzing morphological features, and evaluating specific leading diagnoses. Sensitivity, specificity, and accuracy were determined. Competency assessment of lesional morphology analysis was performed using the kappa values of the 2 tests.
RESULTS
The sensitivity, specificity, and accuracy of MRI for differentiating mucinous vs. non-mucinous lesions were higher than CT (p = 0.03). For differentiating aggressiveness, the sensitivity of MRI was better than CT, but the specificity of CT was better than MRI. In evaluation of morphologic features, MRI showed better performance in characterization of septa and wall. Otherwise, the 2 modalities showed similarly good performance. MRI was better than CT in determining a specific diagnosis (58.8% vs. 47.2%, respectively).
CONCLUSION
CT and MRI are reasonable diagnostic methods for characterization of pancreatic cystic lesions. However, MRI enables more confident assessment than CT in differentiating mucinous vs. non-mucinous lesions and characterization of the septa and wall.


MeSH Terms

Diagnosis
Humans
Magnetic Resonance Imaging*
Mucins
Multidetector Computed Tomography*
Pancreas
Pancreatic Cyst*
Retrospective Studies
Sensitivity and Specificity
Mucins
Full Text Links
  • JKSR
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
    DB Error: unknown error