نتایج جستجو برای: thermal ablation

تعداد نتایج: 263779  

Journal: :Journal of Vascular Surgery 2016

2010
Dieter Haemmerich Enrique J Berjano

We are delighted to present this special issue of The Open Biomedical Engineering (TOBEJ) focused on the current trends in mathematical modeling of high-temperature thermal therapies (ablation therapies). Clinical application and research of these therapies has seen rapid growth in the last decade, particularly for applications of cardiac arrhythmia (cardiac catheter ablation) and cancer treatm...

Journal: :JOP : Journal of the pancreas 2006
Ajith K Siriwardena

Radiofrequency ablation (RFA) for locally advanced cancer of the pancreas appears an attractive proposition. Many Hepatobiliary Surgical Units currently have the equipment and technical expertise for ablation of non-resectable liver tumours and as RFA becomes established in this setting [1], so the concept of thermal ablation for non-resectable tumours is increasingly an accepted component of h...

2017
Li-Li Zhang Gui-Min Xia Yu-Jiang Liu Rui Dou John Eisenbrey Ji-Bin Liu Xiao-Wei Wang Lin-Xue Qian

AIM To assess the insulating effect of a poloxamer 407 (P407)-based gel during microwave ablation of liver adjacent to the diaphragm. METHODS We prepared serial dilutions of P407, and 22.5% (w/w) concentration was identified as suitable for ablation procedures. Subsequently, microwave ablations were performed on the livers of 24 rabbits (gel, saline, control groups, n = 8 in each). The P407 s...

2017

Overview: Uterine leiomyomas (fibroids or myomas) are benign tumors. Since histologic confirmation of the clinical diagnosis is not necessary in most cases, and there is both growth and regression of fibroids, asymptomatic uterine leiomyomas can usually be followed without intervention. Research supports not treating asymptomatic fibroids. Treatments for symptomatic fibroids include medical man...

Journal: :Current opinion in gastroenterology 2005
Shuichi Ohara Tomoyuki Koike Hitoshi Sekine Katsunori Iijima Tooru Shimosegawa

There are many foreign reports about the endoscopic ablation therapy for Barrett's esophagus. Endoscopic ablation therapy include thermal therapy (electrocoagulation, laser etc.), photodynamic therapy or endoscopic resection and so on. Ablation of Barrett's esophagus by these therapy in combination with adequate acid suppression lead to mucosal replacement by squamous epithelium. But the true v...

Journal: :OncoTargets and therapy 2016
Jiayan Chen Chi Zhang Fei Li Liping Xu Hongcheng Zhu Shui Wang Xiaoan Liu Xiaoming Zha Qiang Ding Lijun Ling Wenbin Zhou Xinchen Sun

BACKGROUND Radiofrequency ablation (RFA) is a minimally invasive thermal ablation technique. We conducted a meta-analysis based on eligible studies to assess the efficacy and safety of RFA for treating patients with breast cancer. METHODS A literature search was conducted in PubMed, Embase, and Web of Science databases. Eligible studies were clinical trials that assessed RFA in patients with ...

2013
Kai-Pun Wong Brian Hung-Hin Lang

Successful thermal ablation using radiofrequency has been reported in various tumors including liver or kidney tumors. Nonsurgical minimally invasive ablative therapy such as radiofrequency ablation (RFA) has been reported to be a safe and efficient treatment option in managing symptomatic cold thyroid nodules or hyperfunctioning thyroid nodules. Pressure and cosmetic symptoms have been shown t...

Journal: :Cancer Imaging 2007
Alexandru Cernicanu Matthieu Lepetit-Coiffé Magalie Viallon Sylvain Terraz Christoph D. Becker

There is a sustained interest in using magnetic resonance (MR) thermometry to monitor the radiofrequency ablation of liver tumours as a means of visualizing the progress of the thermal coagulation and deciding the optimal end-point. Despite numerous technical challenges, important progress has been made and demonstrated in animal studies. In addition to MR thermometry, MR can now be used for th...

Journal: :Nature communications 2016
G W Evatt M J Coughlan K H Joy A R D Smedley P J Connolly I D Abrahams

Antarctica contains some of the most productive regions on Earth for collecting meteorites. These small areas of glacial ice are known as meteorite stranding zones, where upward-flowing ice combines with high ablation rates to concentrate large numbers of englacially transported meteorites onto their surface. However, meteorite collection data shows that iron and stony-iron meteorites are signi...

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