Oncological Results of the Educational Rectal Cancer Project in Spain 10 Years After Its Implementation
Conclusions This study indicates that the results observed in the AEC’ Rectal Cancer Project are inferior than those observed in the Scandinavian registries that we tried to emulate and that this is attributable to the variability of practice in some centers.
CONCLUSION: Although MRIyT=2N0/TRG1-2 cannot predict all cases of a complete pathologic response, it can effectively predict a low rate of lymph node involvement and a better prognosis in patients who undergo total mesorectal excision. PMID: 31687781 [PubMed - as supplied by publisher]
Condition: Rectal Cancer Intervention: Diagnostic Test: PET/MR scan Sponsor: Tel-Aviv Sourasky Medical Center Not yet recruiting
ConclusionUSPIO-enhanced MRI of the pelvis at 7-T is technically feasible and offers opportunities for detecting USPIO uptake in normal-sized LNs, due to its high intrinsic signal-to-noise ratio and spatial resolution.Key Points• USPIO-enhanced MRI at 7-T can indicate USPIO uptake in lymph nodes based on computed TE images.• Our method promises a high spatial resolution for pelvic lymph node imaging.
ConclusionThis relatively small series suggest that even a sufficient omentoplasty, as determined by postoperative imaging, does not reduce pelviperineal morbidity after APR for rectal cancer. The methodology of CT-based assessment of an omentoplasty as well as the correlation with postoperative outcomes has to be validated in future studies.
ConclusionsIn a large number of patients with LPLNSM on initial imaging, metastatic LPLN are present after nCRT and surgical treatment. Even in LPLN that are considered responsive on restaging, significant rates of pathologically confirmed metastases are reported.
AbstractPurposeTo assess preoperative short-course radiotherapy (SCR) tumor response in locally advanced rectal cancer (LARC) by means of Standardized Index of Shape (SIS) by dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), apparent diffusion coefficient (ADC), intravoxel incoherent motion (IVIM) and diffusion kurtosis imaging (DKI) parameters derived from diffusion-weighted MRI (DW-MRI).Materials and methodsThirty-four patients with LARC who underwent MRI scans before and after SCR followed by delayed surgery, retrospectively, were enrolled. SIS, ADC, IVIM parameters [tissue diffusion (Dt), pseudo-diffusion...
AbstractPurposeTo compare tumor detectability and conspicuity of standardb = 1000 s/mm2 (b1000) versus ultrahighb = 2000 s/mm2 (b2000) diffusion-weighted imaging (DWI) in rectal cancer.MethodsFifty-five patients for a total of 81 3T DWI-MR scans were retrospectively evaluated by two differently experienced readers. A comparison between b1000 and b2000 for tumor detectability and conspicuity was performed. The conspicuity was qualitatively and quantitatively assessed by using three-point scale and whole tumor volume manual delineation, respectively. Receiver-operating characteristic cur...
Conclusions: There is no evidence of added value of a radiomics model based on on-contrast CT scans for prediction of pCR in rectal cancer. The imbalance of the target variable could be identified as a key issue, leading to a biased model and optimistic predictions.
Conclusions: The results indicate that a possible mechanism behind an anastomotic leakage is an impaired circulation and thus insufficient saturation to the small intestine peroperatively. This develops into an inflammation both intraperitoneally and intravenously, which, if not reversed, spread within the gastrointestinal tract .The colorectal anastomosis is the most vulnerable part of the gastrointestinal tract postoperatively and hypoxia and inflammation may occur there, and an anastomosis leakage will be the consequence. PMID: 31630578 [PubMed - as supplied by publisher]
Conclusions Placement of fiducials in rectal cancer patients is feasible, however, retention rates for intratumoral fiducials were lower (55 %) than for mesorectal fiducials (90 %). [...] © Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents | Abstract | open access Full text