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Updated: Feb 5, 2026

3D Printing of Preclinical X-ray Computed Tomographic Data Sets
Published on: March 22, 2013
Three-dimensional computed tomographic angiography with computed tomographic colonography for laparoscopic colorectal
Atsushi Hiroishi1, Takayuki Yamada2, Tsuyoshi Morimoto2
1Department of Radiology, St Marianna University School of Medicine, Yokohama City Seibu Hospital, 1197-1, Yasashicho, Asahi-Ward, Yokohama, 241-0811, Kanagawa, Japan. yfa35377@nifty.com.
Three-dimensional computed tomographic angiography with computed tomographic colonography (3D-CTA with CTC) accurately maps preoperative vessel anatomy for laparoscopic colorectal cancer surgery, guiding resection margins.
Area of Science:
- Radiology
- Surgical Oncology
- Vascular Anatomy
Background:
- Laparoscopic colorectal surgery requires precise identification of vessel anatomy.
- Preoperative imaging can improve surgical planning and outcomes.
Purpose of the Study:
- To correlate preoperative vessel anatomy from 3D-CTA with CTC to intraoperative findings in laparoscopic colorectal cancer surgery.
- To assess the accuracy of 3D-CTA with CTC in mapping key arteries and their relationships.
Main Methods:
- Prospective study of 101 patients with colon cancer undergoing 3D-CTA with CTC.
- Radiologists assessed sigmoid arteries (SAs), right colonic artery (RCA), ileocolic artery (ICA)-superior mesenteric vein (SMV) relationship, and accessory middle colonic artery (aMCA).
- Preoperative imaging findings were compared with intraoperative surgical observations.
Main Results:
- High technical success rate (97.0%) for 3D-CTA with CTC.
- Complete concordance for SA branching patterns in rectosigmoid/descending colon cancers.
- High concordance for RCA branching and ICA-SMV position in cecal/ascending colon cancers.
- No accessory middle colonic artery (aMCA) detected.
Conclusions:
- 3D-CTA with CTC provides accurate preoperative vessel anatomy for laparoscopic colorectal cancer surgery.
- This imaging modality assists surgeons in determining appropriate resection margins.
- Enhanced visualization of vascular structures improves surgical precision.
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