National Repository of Grey Literature 63 records found  previous11 - 20nextend  jump to record: Search took 0.01 seconds. 
Use the Contrast-Enhanced Ultrasoun in the Morning of the Effect of Liver Tumors Treatment by Radiofrequency ablation
Korčáková, Eva ; Mírka, Hynek (advisor) ; Mechl, Marek (referee) ; Čtvrtlík, Filip (referee)
Use the contrast-enhanced ultrasound in the monitoring of the effect of liver tumors treatment by radiofrequency ablation. Summary High quality imaging is crucial for the treatment of liver tumors by the percutaneous radiofrequency ablation. Imaging methods are used for planning, navigation of the intervention and monitoring after treatment. An early detection of residual tumor tissue or recurrence affect significantly the quality of life and life expectancy of the patients. Contrast enhanced ultrasound (CEUS) seems to be a suitable method for monitoring the locoregional treatment mainly because zero radiation impact on patient and allows the highly accurate real-time assessment of vascularization. The aim of my work was to verify the ability of CEUS to detect residual tumor tissue or tumor recurrence in the field of changes after radiofrequency ablation. We evaluated the group of 73 patients, who were treated by radiofrequency ablation (RFA) for liver cancer. CEUS reached in our group the overal sensitivity 77.27 %, and in the group of colorectal cancer metastases 83.33 %. We compared CEUS with results of computed tomography (CT), which is the most commonly used method for monitoring the treatment. CEUS and CT results are similar. Based on this study, the CEUS appears to be a suitable method for monitoring...
Markers of joint inflammation related to disease activity in rheumatoid arthritis.
Hurňáková, Jana ; Pavelka, Karel (advisor) ; Horák, Pavel (referee) ; Hrnčíř, Zbyněk (referee)
Background: Rheumatoid arthritis (RA) is a common chronic autoimmune disorder characterised by persistent synovitis, typically manifested as symmetric polyarthritis of small hand joints with various extra-articular manifestations. Accurate disease activity measurement is a key component of RA management that facilitates therapeutic optimalization in order to slow down the disease progression and to prevent an irreversible joint damage. The aim of this work was to study the role of candidate serum inflammatory markers and their associations with the disease activity in patients with RA presented by traditional variables of disease activity as well as by musculoskeletal ultrasonography. Results: The first part of our work pointed out relationship between serum calprotectin and clinical as well as ultrasound activity in RA. We have revealed that serum calprotectin is an independent predictor of ultrasound synovitis. Moreover, we have demonstrated the potential of calprotectin to identify patients with residual activity in spite of achieving clinical remission. In the second part, we have provided a detailed analysis of 20 candidate serum markers and found out a tight associations between IL-6, IL-7, IL-22, IL-34, YKL-40, CXCL-13, MMP-3, resistin and visfatin with clinical and ultrasound activity....
Image segmentation of ultrasound images
Schwarzerová, Jana ; Odstrčilík, Jan (referee) ; Mézl, Martin (advisor)
This bachelor’s thesis deals with basic description of ultrasonography, principles of contrast-enhanced imaging and application of segmentation methods in ultrasound problematics. Some individual methods were implemented in Matlab, version R2015b. Algorithms were tested on synthetic images data, on ultrasound phantom images data and on real ultrasound images. Then the thesis was extended by ultrasound sequences segmentation.

National Repository of Grey Literature : 63 records found   previous11 - 20nextend  jump to record:
Interested in being notified about new results for this query?
Subscribe to the RSS feed.