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• Assessment of the potential added-value of an enhanced vision for laparoscopy. • Dry lab test bench mimics a bleeding event in a blind spot for standard laparoscopy. • Enhanced vision improved response times for experienced surgeons. • Surgeons' feedback indicated a minimal increase in cognitive load. • Surgeons declared they would use ELViS in clinical setting when available. The absence of visibility of the entire surgical scene in laparoscopic surgery can lead to unforeseen intraoperative complications. An Enhanced Laparoscopy Vision System (ELViS) was developed to eliminate the blind spots of the traditional endoscope by providing a broad view of the surgical scene from a distance, thanks to two additional images. This study assessed whether the broad view provided by the Enhanced Laparoscopic Vision (ELV) helped the surgeon to detect and react to an unexpected intraoperative adverse event (simulated hemorrhage) occurring while performing a standard task. While participants were performing a standard task (sorting pins) on a dry lab laparoscopic simulator with or without ELV, a simulated bleeding (LED lighting) was randomly triggered. Per-procedure metrics were recorded and surgeons' feedback gathered at the end of the session. Thirteen Senior surgeons participated. Mean response time was significantly reduced when using ELV, with a similar number of simulated bleeding events between both modalities. All surgeons agreed that ELV could be helpful and constitutes an acceptable increase in cognitive load. In a dry lab setup, compared to traditional endoscopy, the broader field of view provided by ELV improved outcomes when dealing with unforeseen complications like bleeding. [ABSTRACT FROM AUTHOR]

Copyright of Proges en Urologie is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Proges en Urologie is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: The purpose of this study was to investigate the ability of full-field optical coherence tomography (FFOCT) to qualitatively and quantitatively evaluate cartilage degeneration using the qualitative evaluation of histology sections as the reference.Design: Thirty-three human knee cartilage samples of variable degeneration were included in the study. A closely matching histology and FFOCT image was acquired for each sample. The cartilage degeneration was qualitatively evaluated by assigning a grade to each histology and FFOCT image. The relevance of the performed grading was assessed by calculating the intra- and inter-observer reproducibility and calculating the concordance between the histology and FFOCT grades. A near-automatic algorithm was developed to quantitatively characterize the cartilage surface in each image. The correlation between the quantitative results and the reference qualitative histology was calculated.Results: An almost perfect agreement was achieved for both the intra- and inter-reproducibility of the histology and FFOCT qualitative grading (κ ≥ 0.91). A high and statistically significant level of agreement was measured between the histology and FFOCT grades (W = 0.95, P < 0.05). Strong and statistically significant correlations were measured between the quantitative results and the reference qualitative histology grades (ρ ≥ 0.75, P < 0.05).Conclusions: We have demonstrated that FFOCT is an alternative approach to conventional optical coherence tomography (OCT) that is as well adapted for the qualitative and quantitative assessment of human cartilage as the reference gold standard - histology. This study constitutes the first promising results towards developing a new diagnostic tool in the field of osteoarthritis. [ABSTRACT FROM AUTHOR]

Abstract: Prostate cancer is the most frequent male cancer and the second cause of male cancer mortality in developed countries. Therefore, it represents a major public health issue. Health problem and the development of new therapeutic strategies to address this issue is essential. During a prostatectomy, the surgeon looks for a compromise between an exhaustive removal of pathologic tissue (to achieve the best carcinogenic prognosis) and the functional consequences linked to a wide excision (i.e.: avoid as much as possible urinary incontinence and sexual dysfunction). In this context, the ANR TecSan DEPORRA project regroups French research laboratories (TIMC-IMAG, FEMTO-ST), companies (Endocontrol-Medical, VERMON) and hospital departments (CIC-IT, Urology & pathology Department of the Grenoble University Hospital) to bring innovative tools for radical prostatectomy. These tools will provide to the surgeon new information from several imaging modalities (video, fluorescence and US imaging), and combine them in an augmented environment. We believe that this augmented environment will ultimately help the surgeon to perform his surgical gesture “optimally” and will improve the patient's carcinogenic and functional prognosis. [Copyright &y& Elsevier]

Objectives: This study examined short-term cardiac catheterization rates and medication changes after cardiac imaging.Background: Noninvasive cardiac imaging is widely used in coronary artery disease, but its effects on subsequent patient management are unclear.Methods: We assessed the 90-day post-test rates of catheterization and medication changes in a prospective registry of 1,703 patients without a documented history of coronary artery disease and an intermediate to high likelihood of coronary artery disease undergoing cardiac single-photon emission computed tomography, positron emission tomography, or 64-slice coronary computed tomography angiography.Results: Baseline medication use was relatively infrequent. At 90 days, 9.6% of patients underwent catheterization. The rates of catheterization and medication changes increased in proportion to test abnormality findings. Among patients with the most severe test result findings, 38% to 61% were not referred to catheterization, 20% to 30% were not receiving aspirin, 35% to 44% were not receiving a beta-blocker, and 20% to 25% were not receiving a lipid-lowering agent at 90 days after the index test. Risk-adjusted analyses revealed that compared with stress single-photon emission computed tomography or positron emission tomography, changes in aspirin and lipid-lowering agent use was greater after computed tomography angiography, as was the 90-day catheterization referral rate in the setting of normal/nonobstructive and mildly abnormal test results.Conclusions: Overall, noninvasive testing had only a modest impact on clinical management of patients referred for clinical testing. Although post-imaging use of cardiac catheterization and medical therapy increased in proportion to the degree of abnormality findings, the frequency of catheterization and medication change suggests possible undertreatment of higher risk patients. Patients were more likely to undergo cardiac catheterization after computed tomography angiography than after single-photon emission computed tomography or positron emission tomography after normal/nonobstructive and mildly abnormal study findings. (Study of Perfusion and Anatomy's Role in Coronary Artery [CAD] [SPARC]; NCT00321399). [ABSTRACT FROM AUTHOR]