Three-dimensional reconstruction of endosonographic images of gastric lesions: Preliminary experience

Purpose. This study was conducted to assess the ability of the endoluminal sonographic probes to image upper gastrointestinal lesions detected with conventional endoscopy and to reconstruct 3‐dimensional (3D) images. Methods. Sonographic images were obtained from 25 gastrointestinal lesions in 22 pa...

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Bibliographic Details
Published in:Journal of clinical ultrasound 2005-03, Vol.33 (3), p.112-118
Main Authors: Tsutsui, Akemi, Okamura, Seisuke, Muguruma, Naoki, Tsujigami, Koji, Ichikawa, Soichi, Ito, Susumu, Umino, Kazunori
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
endosonography
Endosonography - methods
Female
Gastrectomy
Gastric Mucosa - diagnostic imaging
Gastric Mucosa - pathology
Humans
Imaging, Three-Dimensional
Male
Middle Aged
Neoplasm Invasiveness - diagnostic imaging
Neoplasm Invasiveness - pathology
Neoplasm Staging
Retrospective Studies
Software
Stomach Neoplasms - diagnostic imaging
Stomach Neoplasms - pathology
Stomach Neoplasms - surgery
three-dimensional endoscopic ultrasonography
ultrasonic miniprobe
upper gastrointestinal lesions
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Summary:Purpose. This study was conducted to assess the ability of the endoluminal sonographic probes to image upper gastrointestinal lesions detected with conventional endoscopy and to reconstruct 3‐dimensional (3D) images. Methods. Sonographic images were obtained from 25 gastrointestinal lesions in 22 patients using a sonographic miniprobe manually drawn at a set speed across lesions detected during conventional endoscopy. 3D images were then reconstructed using an in‐house software program. Results. In 16 lesions (64%), the 3D sectional images were evaluated as good, and all 25 lesions (100%) could be visualized both transversely and longitudinally. In 12 lesions (48%), the 3D display of the endosonographic surface image corresponded to the endoscopic appearance. In all 11 cases of gastric cancer, the depth of tumor invasion measured using the 3D image was consistent with the histologic diagnosis (100% accuracy). When videotaped sonographic images were stored on a hard disk, it took an average of 3.5 minutes to obtain and display 3D images of the targeted area. Conclusions. 3D sonographic reconstructions of digestive lesions were useful in diagnosis, and we believe that further improvements should enhance the clinical usefulness of 3D endosonography. © 2005 Wiley Periodicals, Inc. J Clin Ultrasound 33:112–118, 2005
ISSN:0091-2751
1097-0096
DOI:10.1002/jcu.20100