W G Bugg1, A K Andreou1, D Biswas2, A P Toms1, S M Williams3. 1. Department of Radiology, Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, UK. 2. Department of Oncology, Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, UK. 3. Department of Radiology, Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, UK. Electronic address: stuart.williams@nnuh.nhs.uk.
Abstract
AIM: To assess whether there is a significant difference in the incidence of patients with metastases of rectal carcinoma at 1 year follow-up between magnetic resonance imaging (MRI)-detected extramural venous invasion (EMVI) and those without. MATERIALS AND METHODS: A search of our institution's cancer registry revealed 788 patients with rectal carcinoma between January 2007 and April 2012. Those who were initially staged using MRI and computed tomography (CT) chest/abdomen/pelvis, and followed-up with a CT chest/abdomen/pelvis examination at 1 year were included in this retrospective study. Patients with synchronous metastases were excluded, leaving a cohort of 202 cases. Two consultant radiologists reviewed all MRI images and gave a consensus opinion regarding EMVI grade and vessel size involved. All CT images were reviewed for metastases. Results were analysed using chi-squared and Fisher's exact tests. RESULTS: There were 53 cases (26.2%) of EMVI-positive rectal carcinoma. Of the patients with EMVI, 24.5% developed metastases at 1 year follow-up, compared to 6.7% of those without. There is a significant difference in prognosis between those patients with and those without MRI-detected EMVI (χ(2) = 12.29, p < 0·001). Those with EMVI have a 3.7 times increased relative risk of developing metachronous metastases within 1 year of diagnosis. CONCLUSION: MRI-detected EMVI-positive rectal carcinomas are associated with an increased risk of metachronous metastases within 1 year of diagnosis. Currently, EMVI status does not directly influence the initial management of rectal carcinoma. This available and potentially prognostic feature could be used to guide treatment pathways to increase disease-free survival.
AIM: To assess whether there is a significant difference in the incidence of patients with metastases of rectal carcinoma at 1 year follow-up between magnetic resonance imaging (MRI)-detected extramural venous invasion (EMVI) and those without. MATERIALS AND METHODS: A search of our institution's cancer registry revealed 788 patients with rectal carcinoma between January 2007 and April 2012. Those who were initially staged using MRI and computed tomography (CT) chest/abdomen/pelvis, and followed-up with a CT chest/abdomen/pelvis examination at 1 year were included in this retrospective study. Patients with synchronous metastases were excluded, leaving a cohort of 202 cases. Two consultant radiologists reviewed all MRI images and gave a consensus opinion regarding EMVI grade and vessel size involved. All CT images were reviewed for metastases. Results were analysed using chi-squared and Fisher's exact tests. RESULTS: There were 53 cases (26.2%) of EMVI-positive rectal carcinoma. Of the patients with EMVI, 24.5% developed metastases at 1 year follow-up, compared to 6.7% of those without. There is a significant difference in prognosis between those patients with and those without MRI-detected EMVI (χ(2) = 12.29, p < 0·001). Those with EMVI have a 3.7 times increased relative risk of developing metachronous metastases within 1 year of diagnosis. CONCLUSION: MRI-detected EMVI-positive rectal carcinomas are associated with an increased risk of metachronous metastases within 1 year of diagnosis. Currently, EMVI status does not directly influence the initial management of rectal carcinoma. This available and potentially prognostic feature could be used to guide treatment pathways to increase disease-free survival.
Authors: Rory F Kokelaar; Huw G Jones; Jeremy Williamson; Namor Williams; A Paul Griffiths; John Beynon; Gareth J Jenkins; Dean A Harris Journal: Cancer Biol Ther Date: 2018-01-19 Impact factor: 4.742
Authors: Eun Sun Lee; Min Ju Kim; Sung Chan Park; Bo Yun Hur; Jong Hee Hyun; Hee Jin Chang; Ji Yeon Baek; Sun Young Kim; Dae Yong Kim; Jae Hwan Oh Journal: Eur Radiol Date: 2017-08-07 Impact factor: 5.315
Authors: Thomas A Hope; Marc J Gollub; Supreeta Arya; David D B Bates; Dhakshinamoorthy Ganeshan; Mukesh Harisinghani; Kartik S Jhaveri; Zahra Kassam; David H Kim; Elena Korngold; Neeraj Lalwani; Courtney C Moreno; Stephanie Nougaret; Viktoriya Paroder; Raj M Paspulati; Jennifer S Golia Pernicka; Iva Petkovska; Perry J Pickhardt; Gaiane M Rauch; Michael H Rosenthal; Shannon P Sheedy; Natally Horvat Journal: Abdom Radiol (NY) Date: 2019-11