ArticleAnnals of surgical oncology2025
Peritoneal Cancer Index Correlates with Radiographic Assessment of Colorectal Carcinomatosis.
Article in Annals of surgical oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Concordance Among Radiological, Laparoscopic and Laparotomic Peritoneal Cancer Index Assessments in Patients Undergoing Cytoreductive Surgery for Peritoneal Metastases.Journal of gastrointestinal cancer · 2026Article
- The Evolving Multidisciplinary Management of Retroperitoneal Lymph Node Metastases from Colorectal Cancer.Annals of surgical oncology · 2026Article
- Impact of pre-segmented regions on CT-based evaluation of the Peritoneal Cancer Index: A reader study.PloS one · 2026Article
- Correlation between baseline magnetic resonance imaging features and serum carcinoembryonic antigen levels in patients with primary rectal cancer.World journal of gastrointestinal oncology · 2025Article
- ASO Author Reflections: What the Eye Cannot See.Annals of surgical oncology · 2025Article
- The Effect of Induced Hypothermia on Postoperative Outcomes Following Hyperthermic Intraperitoneal Chemotherapy: A Negative Finding.Therapeutics and clinical risk management · 2025Article
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Authors and funding
10 authors.
Funding
Abstract
backgroundThe Peritoneal Cancer Index (PCI), calculated intraoperatively, has previously yielded mixed results when correlated with computed tomography. This study aimed to quantify variation in this scoring method comparing radiologists' and surgeons' radiologic PCI (rPCI) assessment.
methodsThe rPCI of 104 patients treated at a single institution for peritoneal carcinomatosis was calculated by an abdominal radiologist and a surgeon. An additional 36-patient cohort was studied to compare preoperative rPCI with intraoperative gold standard PCI. Agreement was compared using kappa statistics.
resultsThe rPCI of the 104 patients studied ranged from 2 to 39 (median, 12; interquartile range [IQR], 6-23) by the radiologist's analysis and 2 to 37 (median, 9; IQR, 6-15) by the surgeon's analysis. There was good agreement for PCI cutoffs of 15 (77.48%; kappa, 0.40) and 20 (78.63%; kappa, 0.24). The 36-patient cohort undergoing surgical exploration showed a median rPCI of 4 (IQR, 2-5.75) and a median intraoperative PCI of 11 (IQR, 6-12), with a significant difference in score by method (p < 0.001, Wilcoxon signed-rank test).
conclusionsFor rPCI cutoffs greater than 15 and 20, the surgeon's and radiologist's rPCI showed strong concordance, denoting the interobserver reproducibility of rPCI. Moreover, concordance with intraoperative PCI translated to radiographic assessment. The rPCI consistently underestimated intraoperative PCI, suggesting that rPCI may be a useful conservative tool for assessing peritoneal burden. Although surgical exploration is needed to "rule in" patients as candidates for CRS, the authors suggest that rPCI can be used to "rule out" patients as CRS candidates based on institutional PCI cutoffs.
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