Abstract:

Aim: was to systematize and clarify possible puncture approaches in percutaneous CT-guided mini-invasive procedures in patients with tumor lesions of pelvic bones.

Methods and materials: 63 CT-guided interventions were performed on pelvic bones (53 trephine biopsy and 10 cryoablations) in 52 patients. Manipulations were performed using the Philips Ingenuity CT scanner, Maxio Perfint robotic system and «Medical Cryotherapeutic System».

Results: during interventional procedures, three topographic regions were identified - zones of the pelvic ring: upper zone (at the level of the ilium), middle zone (level of the articular space of the hip joint), and lower zone (at the level of the ramus of the ischial and pubic bones). In each zone, within certain safety sectors, puncture approaches are highlighted, associated with five optimal positions of the patient in the gantry aperture. Clinical examples of puncture procedures with various localization of the pathological process are given, demonstrating the safety of approaches and the validity of proposed recommendations. There were no complications after interventions.

Conclusion: the choice of the optimal puncture approach and standard patient’ positions in miniinvasive CT-guided operations in patients with pelvic bone lesions can improve the efficiency and safety of surgical procedures.

References 

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Abstract:

Aim: was to analyze domestic and foreign literature sources, reflecting the possibility of applying local ablation methods of focal liver tumors.

Material and methods: article presents an analysis of domestic and foreign 37 publications containing information on the use of methods of local ablation of nodular pathology of liver, deposited in resources of PubMed and information portal eLIBRARY.RU.

Results: most important aspects of performing of methods of chemical, cryo-, microwave, and radiofrequency ablations, used in treatment of local liver tumors were presented.

Conclusion: analysis of various publications on methods of local destruction of tumors does not give a clear answer to the question of which method is preferred, however, article describes each of ablation methods, highlighting positive and negative aspects of their effect on lesions of the liver. The question of the inclusion of minimally invasive methods in schemes of combined and complex antitumor therapy for focal liver lesions also remains open.

Modern approaches and improving techniques of treatment of liver malignancies, expand indications for the use of minimally invasive techniques. Competent selection of patients, selection of the optimal method of local ablation of tumor and subsequent dynamic monitoring of patients reduce the number of relapses, increase the percentage of overall survival of patients and improve their quality of life.

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