A5024447859- Ultrasound and Hyperthermia Applications
- Hepatocellular Carcinoma Treatment and Prognosis
- Medical Imaging and Pathology Studies
- Advanced MRI Techniques and Applications
- Ultrasound Imaging and Elastography
- Advanced X-ray and CT Imaging
- Cardiac Arrhythmias and Treatments
- Liver Disease Diagnosis and Treatment
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Spectroscopy Techniques in Biomedical and Chemical Research
- Advanced Radiotherapy Techniques
- Electromagnetic Fields and Biological Effects
Purpose: The aim of this study was to characterise changes in tissue volume during image-guided microwave ablation order arrive at a more precise determination the true zone. Materials and methods: effect power (20–80 W) time (1–10 min) on microwave-induced contraction experimentally evaluated various-sized cubes ex vivo liver (10–40 mm ± 2 mm) muscle (20 40 embedded agar phantoms (N = 119). Post-ablation linear volumetric dimensions were measured compared with pre-ablation dimensions....
Purpose: The aim of this study was to compare the performance a microwave ablation (MWA) apparatus in preclinical and clinical settings.Materials method: same commercial 2.45 GHz MWA used throughout study. In total 108 ablations at powers ranging from 20 130 W lasting 3 30 min were obtained on ex vivo bovine liver; 28 60 W, 80 100 5 10 then an swine model. Finally, 32 hepatocellular carcinomas (HCCs) 19 liver metastases 46 patients treated percutaneously by administering for either or min....
The aim of this study was to develop a predictive model the shrinkage liver tissues in microwave ablation.Thirty-seven cuboid specimens ex vivo bovine size ranging from 2 cm 8 were heated exploiting different techniques: 1) using oven (2.45 GHz) operated at 420 W, 500 W and 700 for 20 min, achieving complete carbonisation specimens, 2) radiofrequency ablation apparatus (450 kHz) 70 time 6 7.5 min obtaining white coagulation 3) 60 10 min. Measurements specimen dimensions, carbonised...
Purpose: The aim of this study was to numerically and experimentally characterise the influence tissues dimensions on size shape microwave-induced ablation zones. Materials methods: A 2.45 GHz interstitial antenna introduced into ex vivo bovine liver samples, delivering 60 W for 10 min; then coagulated area were measured. Ablations performed both in large samples (termed unrestricted tissue) characterising tissue response, thin whose plane perpendicular smaller than short axis ablated...
To study the correlation between overall coagulation zone (A) attained in percutaneous microwave ablation (MWA) of hepatocellular carcinomas (HCC) and: (1) hyperdense (C) visible central part A on post-treatment unenhanced CT scans; (2) deposited energy; (3) zones observed ex-vivo bovine liver.The post-procedural computed tomography (CT) scans HCCs treated with a single energy deployment through same 2450 MHz MWA system were retrospectively analyzed, retrieving dimensions and C (E). Ex-vivo...