Diffusion‐weighted MRI assessment of the peritoneal cancer index before cytoreductive surgery. BJS 2019; 106: 491-498.
Published: 24th October 2018
Authors: I. van 't Sant, W. J. van Eden, M. P. Engbersen, N. F. M. Kok, K. Woensdregt, D. M. J. Lambregts et al.
Patients with limited peritoneal metastases from colorectal cancer may be candidates for an aggressive surgical approach including cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS–HIPEC). Selection is based on surgical inspection during laparoscopy or laparotomy. The aim of this study was to investigate whether diffusion‐weighted MRI (DW‐MRI) can be used to select patients for CRS–HIPEC.
This was a prospective study at a tertiary referral centre. Patients with confirmed or suspected colorectal peritoneal metastases scheduled for exploratory laparotomy or laparoscopy were eligible. Two radiologists assessed the peritoneal cancer index (PCI) on CT (CT‐PCI) and DW‐MRI (MRI‐PCI). The reference standard was PCI at surgery. Radiologists were blinded to the surgical PCI and to each other's findings. The main outcome was the accuracy of DW‐MRI in predicting whether patients had resectable disease (PCI less than 21) or not.
Fifty‐six patients were included in the study, of whom 49 could be evaluated. The mean(s.d.) PCI at surgery was 11·27(7·53). The mean MRI‐PCI was 10·18(7·07) for reader 1 and 8·59(7·08) for reader 2. Readers 1 and 2 correctly staged 47 of 49 and 44 of 49 patients respectively (accuracy 96 and 90 per cent). Both readers detected all patients with resectable disease with a PCI below 21 at surgery (sensitivity 100 per cent). No patient was overstaged. The intraclass correlation (ICC) between readers was excellent (ICC 0·91, 95 per cent c.i. 0·77 to 0·96). MRI‐PCI had a stronger correlation with surgical PCI (ICC 0·83–0·88) than did CT‐PCI (ICC 0·39–0·44).
DW‐MRI is a promising non‐invasive tool to guide treatment selection in patients with peritoneal metastases from colorectal cancer.Full text
You may also be interested in
Authors: R. L. Venchiarutti, M. J. Solomon, C. E. Koh, J. M. Young, D. Steffens
Meta‐analysis of the role of colonoscopy after an episode of left‐sided acute diverticulitis. BJS 2019; 106: 988-997.
Authors: S. J. Rottier, S. T. Dijk, A. A. W. Geloven, W. H. Schreurs, W. A. Draaisma, W. A. Enst et al.
Randomized clinical trial
Multicentre randomized clinical trial of colonic J pouch or straight stapled colorectal reconstruction after low anterior resection for rectal cancer.
Authors: S. Pucciarelli, P. Del Bianco, U. Pace, F. Bianco, A. Restivo, I. Maretto et al.
Authors: T. O. Sillo, A. D. Beggs, D. G. Morton, G. Middleton
Meta‐analysis of the effect of extending the interval after long‐course chemoradiotherapy before surgery in locally advanced rectal cancer.
Authors: É. J. Ryan, D. P. O'Sullivan, M. E. Kelly, A. Z. Syed, P. C. Neary, P. R. O'Connell et al.
Randomized clinical trial
Randomized clinical trial of accelerated enhanced recovery after minimally invasive colorectal cancer surgery (RecoverMI trial).
Authors: B. K. Bednarski, T. P. Nickerson, Y. N. You, C. A. Messick, B. Speer, V. Gottumukkala et al.
Organoids from colorectal peritoneal metastases as a platform for improving hyperthermic intraperitoneal chemotherapy.
Authors: I. Ubink, A. C. F. Bolhaqueiro, S. G. Elias, D. A. E. Raats, A. Constantinides, N. A. Peters et al.
Postoperative complications in relation to overall treatment time in patients with rectal cancer receiving neoadjuvant radiotherapy.
Authors: J. Erlandsson, D. Pettersson, B. Glimelius, T. Holm, A. Martling
Immunogenomic profiles associated with response to neoadjuvant chemoradiotherapy in patients with rectal cancer.
Authors: T. Akiyoshi, N. Tanaka, K. Kiyotani, O. Gotoh, N. Yamamoto, K. Oba et al.
BRAF mutation is not associated with an increased risk of recurrence in patients undergoing resection of colorectal liver metastases.
Authors: J.‐B. Bachet, N. Moreno‐Lopez, L. Vigano, U. Marchese, M. Gelli, L. Raoux et al.
Propensity score‐matched analysis of oncological outcome between stent as bridge to surgery and emergency resection in patients with malignant left‐sided colonic obstruction. BJS 2019; 106: 1075-1086.
Authors: F. J. Amelung, W. A. A. Borstlap, E. C. J. Consten, J. V. Veld, E. E. van Halsema, W. A. Bemelman et al.
Systematic review of outcomes after total neoadjuvant therapy for locally advanced rectal cancer. BJS 2019; 106: 979-987.
Authors: A. Zaborowski, A. Stakelum, D. C. Winter