Evidence map›Paper›PMID 42853291›Full record

ArticleSurgery today2026

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

Yuko Ikeda, Gaku Ohira, Koichi Hayano, Toru Tochigi, Yoshihiro Kurata, Atsushi Hirata, Hajime Yokota, Koji Matsumoto, Yoshiki Yamagishi, Tetsuro Maruyama and 4 more

Abstract read
PubMed Publisher
In one paragraph

Article in Surgery today, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Yuko IkedaDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan.
Gaku OhiraDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan. Ohira@faculty.chiba-u.jp.
Koichi HayanoDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan.
Toru TochigiDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan.
Yoshihiro KurataDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan.
Atsushi HirataDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan.
Hajime YokotaDiagnostic Radiology and Radiation Oncology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan.
Koji MatsumotoDepartment of Radiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan.
Yoshiki YamagishiDepartment of Radiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan.
Tetsuro MaruyamaDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan.
Koichiro OkadaDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan.
Michihiro MaruyamaDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan.
Shuto KiyohikoDepartment of Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, 299-0111, Chiba, Japan.
Hisahiro MatsubaraDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, 260-8670, Chiba, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the visualization rates of the hypogastric and pelvic splanchnic nerves using magnetic resonance neurography (MRN) and to identify associated factors. MATERIALS AND

methodsThis 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.

resultsThe 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.

conclusionMRN 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.

Indexed as

Dysuria and sexual dysfunctionHypogastric nerveMagnetic resonance neurographyNavigation SurgeryPelvic splanchnic nerveRectal cancer

Identifiers

PMID42853291

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.