Theme | Recent Advances in the Endoscopic Ultrasonography | |
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Title | New Developments in Endosonography-Upper/3D Imaging-Three-dimensional Ultrasonography for Upper Gastrointestinal Diseases | |
Publish Date | 1999/08 | |
Author | Teruo Kouzu | Department of Endoscopic Diagnostics and Therapeutics, Chiba University School of Medicine |
[ Summary ] | EUS was developed in the early 1980's and has gradually become an important modality for diagnosing gastro-intestinal diseases. Recently, the miniature sonoprobe has been introduced and is expected to provide more uses for endosonography. Two-dimensional ultrasonography is useful for determining the invasive depth of gastrointestinal lesions and has greatly contributed to our knowledge of gastrointestinal pathology. Three-dimensional ultrasonography has recently been developed, and its possible clinical applications are currently being studied. Three-dimensional ultrasonography has several advantages : l) it can determine the extent of the lesion being examined ; 2) it can determine the effectiveness of preoperative neoadjuvant therapy ; 3) it can accurately evaluate any changes in lymph node status, which is crucial for determining the success of endoscopic therapy of gastrointestinal malignancies ; 4) three-dimensional ultrasonography may also possible be of use in determining the extent of any inflammatory process. |