Visualizing pelvic splanchnic nerve and hypogastric nerve with magnetic resonance neurography in rectal cancer patients.

IF 2.3 4区医学 Q2 SURGERY

Surgery Today Pub Date : 2026-10-09 DOI:10.1007/s00595-026-03501-y

Yuko Ikeda, Gaku Ohira, Koichi Hayano, Toru Tochigi, Yoshihiro Kurata, Atsushi Hirata, Hajime Yokota, Koji Matsumoto, Yoshiki Yamagishi, Tetsuro Maruyama, Koichiro Okada, Michihiro Maruyama, Shuto Kiyohiko, Hisahiro Matsubara

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引用次数: 0

Abstract

Purpose: To evaluate the visualization rates of the hypogastric and pelvic splanchnic nerves using magnetic resonance neurography (MRN) and to identify associated factors.

Materials and methods: This study included patients with rectal carcinoma who underwent preoperative MRN at our institution between December 2019 and September 2020. Two gastrointestinal surgeons evaluated the visibility of the hypogastric and pelvic splanchnic nerves on a per-nerve basis, with scores of "excellent" or "good" defined as successful visualization.

Results: The visualization rates of the hypogastric and pelvic splanchnic nerves were 21.6% and 81.8%, respectively. A large visceral fat area at the umbilical level (p = 0.0150) was an independent factor affecting the visualization rate of the hypogastric nerves. Early clinical T stage (cT1-3) (p = 0.0255) and a large visceral fat area at the level of the upper edge of the femoral head (p = 0.0096) were independent factors affecting the visualization rate of the pelvic splanchnic nerves.

Conclusion: MRN demonstrated a high visualization rate for the pelvic splanchnic nerves but a low rate for the hypogastric nerves. Visualization appeared to be influenced by the visceral fat area and inflammatory responses or edema in surrounding structures.

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来源期刊

Surgery Today 医学-外科

CiteScore

4.90

自引率

4.00%

发文量

208

审稿时长

1 months

期刊介绍： Surgery Today is the official journal of the Japan Surgical Society. The main purpose of the journal is to provide a place for the publication of high-quality papers documenting recent advances and new developments in all fields of surgery, both clinical and experimental. The journal welcomes original papers, review articles, and short communications, as well as short technical reports("How to do it"). The "How to do it" section will includes short articles on methods or techniques recommended for practical surgery. Papers submitted to the journal are reviewed by an international editorial board. Field of interest: All fields of surgery.