Three-dimensional endoluminal ultrasound: a new method for the evaluation of gastrointestinal tumors

AbstractBackground: The purpose of the present study was to evaluate the feasibility of three-dimensional endoluminal ultrasound of gastrointestinal tumors. Methods: Sixteen patients with esophageal, gastric, or colorectal tumors underwent endoscopic ultrasound. Three-dimensional ultrasound data were obtained from multiple serial images of a miniprobe (360°, 12.5 MHz) and processed on a PC-based 3D workstation. Results: Adequate three-dimensional ultrasound scans were obtained in eight patients with esophageal cancer and five patients with colorectal cancer. Three-dimensional image processing enabled visualization of the data as a multiplanar display or as a life-like three-dimensional view. The availability of arbitrary scan planes improved the assessment of local tumor spread and the spatial relation of the tumor to relevant adjacent structures (e.g., major vessels). Three-dimensional presentations provided realistic views of the anatomy and facilitated the interpretation of the ultrasound images. Conclusions: Three-dimensional display and the ability to review endoluminal ultrasound data interactively may improve the staging of gastrointestinal tumors. These preliminary data encourage further evaluation of this technique.

[1]  B. Garra,et al.  The feasibility of three-dimensional endoscopic ultrasonography: a preliminary report. , 1995, Gastrointestinal endoscopy.

[2]  R. McLeod,et al.  Reliability and validity studies of endoluminal ultrasonography for anorectal disorders , 1994, Diseases of the colon and rectum.

[3]  P M Schlag,et al.  Three-dimensional endosonography for staging of rectal cancer. , 1997, Annals of surgery.

[4]  J. Virjee,et al.  Preoperative assessment of mesorectal lymph node involvement in rectal cancer , 1989, The British journal of surgery.

[5]  M. Suyama,et al.  Endoscopic ultrasound and intraductal ultrasound in the diagnosis of small pancreatic tumors , 1998, Abdominal Imaging.

[6]  T R Nelson,et al.  Three‐dimensional ultrasound: Display modalities in obstetrics , 1997, Journal of clinical ultrasound : JCU.

[7]  Gabriel P Krestin,et al.  Preliminary assessment of three-dimensional magnetic resonance imaging for various colonic disorders , 1997, The Lancet.

[8]  K. Ivanov,et al.  Three-dimensional endoluminal ultrasound , 1997, Diseases of the Colon & Rectum.

[9]  M W Vannier,et al.  Three-dimensional imaging. , 1991, Radiology.

[10]  W. R. Lees,et al.  Three-dimensional fetal ultrasound , 1992, The Lancet.

[11]  R A Levine,et al.  Three-dimensional echocardiography: techniques and applications. , 1992, The American journal of cardiology.

[12]  M. Vannier,et al.  Three-dimensional imaging, surgical planning, and image-guided therapy. , 1996, Radiologic clinics of North America.

[13]  Tio Tl.  Diagnosis and staging of esophageal carcinoma by endoscopic ultrasonography. , 1998 .

[14]  A. Hara,et al.  Computed Tomographic Colonography (Virtual Colonoscopy): A New Method for Detecting Colorectal Neoplasms , 1997, Endoscopy.