Clinical Evaluation of Respiratory-triggered 3D Magnetic Resonance Cholangiopancreatography with Navigator Echoes Compared to Breath-hold Acquisition Using Compressed Sensing and/or Parallel Imaging

Abstract

Aim: To investigate image quality of respiratory triggered 3D MRCP with compressed parallel and sensing imaging in clinical setting.

Study design: Cross-sectional study

Duration and place of study: Study was conducted in the duration of1^st July 2021 to 31^st December 2021 at Department of Radiology, Chandka Medical College Hospital, Larkana.

Methodology: Ninety patients with age between 40-70 years were enrolled.

The patients got three various kinds of MRCP 3 dimensional as a protocol of their diagnosis plan. Four point scoring system was adapted for quality assessment.

Results: The mean age of the patients was 66.9±8.6 years. There were almost similar number of males and females. Minimally invasive-intraductal papillarymucinous carcinoma was presented only in 2.22%. Comparison of three magnetic resonance cholangiopancreatography techniques showed that signal quality, was better as longer time involved in 1^st magnetic resonance cholangiopancreatography case while blurring was also seen in breath holding magnetic resonance cholangiopancreatography.

Conclusion: Better imaging quality of ductal system is obtained through respiratory triggered 3D magnetic resonance cholangiopancreatography against breath hold.

Keywords: Magnetic resonance cholangiopancreatography, 3D Imaging, Compressed Sensing, Parallel imaging