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ECR 2019 / C-0408
Percutaneous image-guided palliative cryoablation of bone metastases
Congress: ECR 2019
Poster No.: C-0408
Type: Scientific Exhibit
Keywords: Oncology, Interventional non-vascular, Musculoskeletal bone, Percutaneous, CT, Ablation procedures
Authors: I. A. Burovik, G. Prokhorov, A. V. Mishchenko; Saint Petersburg/RU
DOI:10.26044/ecr2019/C-0408

Methods and materials

The cryoablation was carried out in 17 patients, 47-82 yo, who had from 1 to 3 bone metastases of breast, lung and ovarian cancer in ribs, scapula, sacrum and bones of extremities. The dimensions of the foci varied from 1 to 12 cm (4.2 ± 0.9 cm).

Depending on patient somatic status and localization of the tumor general or local anesthesia was applied. 

Instrument navigation was performed under CT with the principle of "free hand" (serial or fluoroscopic mode) or with robotic navigation system. If necessary bone drill was used.

  

Fig. 1: Stylet positioning in the “free hand” mode
References: Radiology Department, N.N. Petrov National Medical Research Center of Oncology - Saint Petersburg/RU

 

Fig. 2: Stylet positioning with robotic navigation system
References: Radiology Department, N.N. Petrov National Medical Research Center of Oncology - Saint Petersburg/RU

 

Сryoprobes of the cryotherapy system on liquid nitrogen were from 1.5 to 3.0 mm.

 

Fig. 9: Probes and other instruments for cryoablation
References: Radiology Department, N.N. Petrov National Medical Research Center of Oncology - Saint Petersburg/RU

 

Fig. 10: Ice balls (3 mm and 1,5 mm cryoprobes)
References: Radiology Department, N.N. Petrov National Medical Research Center of Oncology - Saint Petersburg/RU

 

Cryoablation procedure included two cooling cycles up to -190 С° with an exposure for 5 minutes with an intermediate active thawing. 

 

 

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