The Study of Mass Volume Calculation of the Colorectal Tumor Using 3 Dimensional Endoscopic Ultrasonography

Plenary Lecture 2: Three‐Dimensional Endoscopic Ultrasonography Imaging in the Digestive Tract

“…The actual volume of the tumor can be calculated immediately. This procedure is useful for following up the tumor, especially for the evaluation of the effects of chemotherapy on gastric cancers or submucosal tumors 7,8 …”

Moderator's Comment: Three‐Dimensional Image Construction and Fine‐Needle Aspiration Under Endoscopic Ultrasonography

“…This procedure is useful for following up the tumor, especially for the evaluation of the effects of chemotherapy on gastric cancers or submucosal tumors. 7,8 Doubling the density of the radial imaging improves the quality of the picture. High-resolution mode produces more precise images.…”

“…The recent models for EUS FNA use consist of a steel needle with a stylet, metal outer sheath, and a biopsy handle. 7,8 The biopsy handle enables locking of the echoendoscope to the inlet of the biopsy channel. After the introduction of this new needle system, the rate of adequate specimen collection improved remarkably.…”