| Theme | Present Status and Future Aspects of EUS | |
|---|---|---|
| Title | Diagnosis Using Three Dimensional Intraductal Ultrasonography (3D-IDUS) for Extrahepatic Bile Duct Cancer | |
| Publish Date | 2005/10 | |
| Author | Hironao Miyoshi | Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine |
| Author | Kazuo Inui | Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine |
| Author | Junji Yoshino | Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine |
| Author | Kazumu Okushima | Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine |
| Author | Yuta Nakamura | Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine |
| Author | Toshihiko Chikaishi | Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine |
| [ Summary ] | We performed intraductal ultrasonography (IDUS) and 3D-IDUS for extrahepatic bile duct cancer on 13 patients. We compared tumor extensions using T (NM) classification of UICC. We obtained radial images, 3D-IDUS and a dual plane reconstruction (DPR) images with 3D-IDUS. A DPR image is the combination of a radial image and a linear image. We compared the accuracy of tumor extension observation by using 3D-IDUS with IDUS. The accuracy of IDUS was 61.5 %, and that of 3D-IDUS was 76.9 %, higher than IDUS. We were able to produce comprehensive images using DPR images, therefore the accuracy of 3D-IDUS has improud. 3D-IDUS will become a standardized method in the near future. The increased development of these instruments is necessary for microlevel diagnosis. |
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