Development of a novel fusion imaging technique in the diagnosis of hepatobiliary-pancreatic lesions

Authors

  • Koichi Soga,

    Corresponding author
    1. Department of Gastroenterology, Uji Takeda Hospital
    2. Department of Internal Medicine, Nishijin Hospital, Kyoto, Japan
    • Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine
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  • Jun Ochiai,

    1. Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine
    2. Department of Gastroenterology, Uji Takeda Hospital
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  • Kyoichi Kassai,

    1. Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine
    2. Department of Internal Medicine, Nishijin Hospital, Kyoto, Japan
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  • Takashi Miyajima,

    1. Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine
    2. Department of Gastroenterology, Uji Takeda Hospital
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  • Kenji Itani,

    1. Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine
    2. Department of Internal Medicine, Nishijin Hospital, Kyoto, Japan
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  • Nobuaki Yagi,

    1. Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine
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  • Yuji Naito

    1. Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine
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  • K Soga MD, PhD; J Ochiai MD, PhD; K Kassai MD, PhD; T Miyajima MD, PhD; K Itani MD, PhD; N Yagi MD, PhD; Y Naito MD, PhD.
  • Conflict of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.

Correspondence

Dr Koichi Soga, Department of Internal Medicine, Nishijin Hospital, 1035 Mizomae-cho, Kamigyo-ku, Kyoto 602-8319, Japan.

Email: sogatti@koto.kpu-m.ac.jp

Abstract

Introduction

Multi-row detector computed tomography (MDCT) and magnetic resonance cholangiopancreatography (MRCP) play an important role in the imaging diagnosis of hepatobiliary-pancreatic lesions. Here we investigated whether unifying the MDCT and MRCP images onto the same screen using fusion imaging could overcome the limitations of each technique, while still maintaining their benefits. Moreover, because reports of fusion imaging using MDCT and MRCP are rare, we assessed the benefits and limitations of this method for its potential application in a clinical setting.

Methods

The patient group included 9 men and 11 women. Among the 20 patients, the final diagnoses were as follows: 10 intraductal papillary mucinous neoplasms, 5 biliary system carcinomas, 1 pancreatic adenocarcinoma and 5 non-neoplastic lesions. After transmitting the Digital Imaging and Communication in Medicine data of the MDCT and MRCP images to a workstation, we performed a 3-D organisation of both sets of images using volume rendering for the image fusion.

Results

Fusion imaging enabled clear identification of the spatial relationship between a hepatobiliary-pancreatic lesion and the solid viscera and/or vessels. Further, this method facilitated the determination of the relationship between the anatomical position of the lesion and its surroundings more easily than either MDCT or MRCP alone.

Conclusion

Fusion imaging is an easy technique to perform and may be a useful tool for planning treatment strategies and for examining pathological changes in hepatobiliary-pancreatic lesions. Additionally, the ease of obtaining the 3-D images suggests the possibility of using these images to plan intervention strategies.

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