Crispin Schneider

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AIM The colorectal two-week wait fast track (FT) referral system was nationally implemented in the UK in 2000 to ensure patients with colorectal cancer (CRC) received prompt access to specialized services. The aim of this study was to determine the association between the mechanism of referral to colorectal services and the 5-year outcomes for patients with(More)
We present an analysis of the registration component of a proposed image guidance system for image guided liver surgery, using contrast enhanced CT. The analysis is performed on a visually realistic liver phantom and in-vivo porcine data. A robust registration process that can be deployed clinically is a key component of any image guided surgery system. It(More)
BACKGROUND Laparoscopic liver ablation therapy can be used for the treatment of primary and secondary liver malignancy. The increased incidence of cancer recurrence associated with this approach, has been attributed to the inability of monitoring the extent of ablated liver tissue. METHODS The feasibility of assessing liver ablation with probe-based(More)
Probe-based confocal laser endomicroscopy is an emerging imaging modality that enables visualization of histologic details during endoscopy and surgery. A method of guiding the probe with millimeter accuracy is required to enable imaging in all regions of the abdomen accessed during laparoscopy. On the basis of a porcine model of laparoscopic liver(More)
Laparoscopic liver resection has significant advantages over open surgery due to less patient trauma and faster recovery times, yet it can be difficult due to the restricted field of view and lack of haptic feedback. Image guidance provides a potential solution but one current challenge is in accurate “hand–eye” calibration, which determines the position(More)
Laparoscopic liver resection has significant advantages over open surgery due to less patient trauma and faster recovery times, yet is difficult for most lesions due to the restricted field of view and lack of haptic feedback. Image guidance provides a potential solution but is challenging in a soft deforming organ such as the liver. In this paper, we(More)
AIM To evaluate predictors of allogenic blood transfusion requirements in patients undergoing minimal invasive oesophagectomy at a tertiary high volume centre for oesophago-gastric surgery. METHODS Retrospective analysis of all patients undergoing minimal access oesophagectomy in our department between January 2010 and December 2011. Patients were divided(More)
Crispin Schneider, Sean P. Johnson, Kurinchi Gurusamy, Richard J. Cook, Adrien E. Desjardins, David J. Hawkes, Brian R. Davidson, and Simon Walker-Samuel Division of Surgery & Interventional Science, University College London, Floor 9, Royal Free Hospital, London NW3 2QG, UK UCLCentre for AdvancedBiomedical Imaging, PaulO’GormanBuilding, University College(More)
BACKGROUND Emergency laparotomy (EL) is a procedure that puts a strain on healthcare resources and is associated with a significant morbidity and mortality. Despite these implications little improvement in the outcome of patients undergoing this procedure has been made in the UK over the last few decades. A delay in transferring patients to theatre has been(More)
Endothelial dysfunction after surgery may be caused by alterations in the intracellular signaling properties of endothelial cells. Functional alterations are believed to be systemic and dependent on the amount of invasiveness. This led us to assume that there would be a mediator in the blood. Therefore, we investigated the influence of perioperative serum(More)