ABSTRACT
Rectal cancer occupies the leading position among cancers, and incidence of locally advanced recurrences is still high despite comprehensive treatment. Combined resections are usually associated with high perioperative risks. These procedures are technically complex interventions requiring further improvement. Virtual reality technology in surgical treatment of locally advanced rectal cancer recurrence has not been widely discussed. The authors present multidisciplinary construction of the matched topographic-anatomical virtual model and virtual planning of the combined surgical intervention. Intraoperative use of augmented reality allowed specifying topographic and anatomical features of surgical area, level of vascular ligation, localization of tumor fixation points and resection borders. These data ensured safety and quality of resection. Further research of augmented reality technology and improvement of its technical aspects will improve the results of surgical treatment of patients with locally advanced pelvic tumors and recurrences.
Subject(s)
Augmented Reality , Rectal Neoplasms , Humans , Neoplasm Recurrence, Local/surgery , Neoplasm Recurrence, Local/pathology , Rectal Neoplasms/surgery , Rectal Neoplasms/pathology , Rectum/surgeryABSTRACT
We report a patient with recurrent glioblastoma in eloquent brain area. Stereotactic fluorescence biospectroscopy and stereotactic photodynamic therapy of tumor in opercular area of the left frontal lobe under neurophysiological monitoring were carried out. Literature data on this issue were analyzed.
Subject(s)
Brain Neoplasms , Glioblastoma , Photochemotherapy , Brain Neoplasms/diagnostic imaging , Brain Neoplasms/drug therapy , Fluorescence , Glioblastoma/diagnostic imaging , Glioblastoma/drug therapy , Glioblastoma/surgery , Humans , Neoplasm Recurrence, Local/diagnostic imaging , Neoplasm Recurrence, Local/drug therapyABSTRACT
The authors determined the efficacy of main methods of MR-imaging and their part in differentiated diagnostics of focal liver lesions. There were examined 256 patients and 414 liver lesions were analyzed. It was shown that the efficacy of conventional research without application of contrast medium was very limited (efficacy of mathematical model 58%). The data obtained during dynamic contrast enchancement (efficacy of the model 67%) were the basis for differentiated diagnostics for majority of nosological forms. The investigation using hepatotropic contrast medium had the greatest possibilities (efficacy of the model 80%). MR-diffusion is the effective procedure for visualization of focal liver lesions, but its possibilities in differentiated diagnostics is limited
