rectal cancer
Conditions
Interventions
Observation group:None
Sponsors
Shanghai General Hospital
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1.Patients with a confirmed diagnosis of rectal cancer established via clinical examination and/or pathological assessment. 2.Patients receiving treatment at the study center during the study period, who have completed or are scheduled to complete routine preoperative magnetic resonance imaging (MRI) for rectal cancer. 3.MRI image quality meets the requirements for imaging analysis and measurement, clearly visualizing the rectum and tumor-related anatomical structures. 4.Age >= 18 years, regardless of gender. 5.Capable of understanding the study content and voluntarily signing the informed consent form based on full information.
Exclusion criteria
Exclusion criteria: 1.Prior surgical history affecting anatomy:Patients who have undergone previous surgeries that may significantly alter the anatomical structure of the rectum or anal canal (e.g., low anterior resection, abdominoperineal resection), thereby affecting the accurate assessment of the tumor-anal verge distance. 2.Incomplete or poor-quality imaging: Patients with incomplete preoperative magnetic resonance imaging (MRI) data or poor image quality that fails to meet the requirements for imaging analysis and measurement. Confounding comorbidities:; 3.Presence of severe rectal or pelvic comorbidities (e.g., severe inflammation, malformations) that interfere with image interpretation or measurement. 4.Inability to comply or other disqualifiers: Patients unable to cooperate with the collection of study-related information, or other conditions deemed by the investigator as unsuitable for inclusion in this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Magnetic Resonance Imaging of the Pelvis;Postoperative pathology;3D curved-path MRI-measured DTAV; | — |
Countries
China
Contacts
Public ContactHuang Chen
Shanghai General Hospital
Outcome results
None listed