نتایج جستجو برای: hifu lesion detection

تعداد نتایج: 657209  

2015
Felipe Shoiti Urakawa Marcos Roberto de Menezes Mauricio Moura Stephanie Castro

Background/introduction Ablation by MR guided high intensity focused ultrasound has become one of the main non-invasive methods for the treatment of symptomatic uterine fibroids, since 2004, when it was approved by the FDA. Much of this growing preference, due to its effectiveness in relieving symptoms, low complication rates, lack of ionizing radiation and prompt recovery after the procedure. ...

2015
Johanna van Breugel Joost Wijlemans Martijn de Greef Gerald Schubert Maurice van den Bosch Chrit Moonen Mario Ries

Background/introduction Since approximately 1.6 percent of men and women will be diagnosed with kidney and renal pelvis cancer during their lifetime, there is a growing interest in non-invasive kidney sparing therapy for renal cancer. As a consequence, several patient studies investigated the feasibility of high intensity focused ultrasound (HIFU) for the thermal ablation of renal masses. The m...

2017
Floortje M. Knuttel Sèvrin E. M. Huijsse Talitha L. Feenstra Chrit T. W. Moonen Maurice A. A. J. van den Bosch Erik Buskens Marcel J. W. Greuter Geertruida H. de Bock

BACKGROUND Magnetic resonance-guided high intensity focused ultrasound (MR-HIFU) ablation is in development for minimally invasive treatment of breast cancer. Cost-effectiveness has not been assessed yet. An early health technology assessment was performed to estimate costs of MR-HIFU ablation, compared to breast conserving treatment (BCT). METHODS An MR-HIFU treatment model using the dedicat...

Journal: :Physics in medicine and biology 2016
Visa Suomi Yang Han Elisa Konofagou Robin O Cleveland

Multiple ultrasound elastography techniques rely on acoustic radiation force (ARF) in monitoring high-intensity focused ultrasound (HIFU) therapy. However, ARF is dependent on tissue attenuation and sound speed, both of which are also known to change with temperature making the therapy monitoring more challenging. Furthermore, the viscoelastic properties of tissue are also temperature dependent...

2015
Mohammed Alkhorayef Mustafa Z. Mahmoud Khalid S. Alzimami Abdelmoneim Sulieman Maram A. Fagiri

BACKGROUND High-intensity focused ultrasound (HIFU) applies high-intensity focused ultrasound energy to locally heat and destroy diseased or damaged tissue through ablation. This study intended to review HIFU to explain the fundamentals of HIFU, evaluate the evidence concerning the role of HIFU in the treatment of prostate cancer (PC), review the technologies used to perform HIFU and the publis...

2018
Mirjam C L Peek Feng Wu

High-intensity focused ultrasound (HIFU) is a minimally invasive technique that has been used for the treatment of both benign and malignant tumours. With HIFU, an ultrasound (US) beam propagates through soft tissue as a high-frequency pressure wave. The US beam is focused at a small target volume, and due to the energy building up at this site, the temperature rises, causing coagulative necros...

2010
Biao Xie Yu-Yuan Li Lin Jia Yu-Qiang Nie Hong Du Shu-Man Jiang

The aim of this study was to determine the feasibility and safety of high intensity focused ultrasound's (HIFU) in pancreatic diseases. Twelve pigs were divided into three groups. The pancreases of pigs in Group A were ablated directly with HIFU, but those in Group B and C ablated by extracorporeal HIFU. The pigs in Group C were sacrificed at day 7 after HIFU. Serological parameters were determ...

Journal: :AJR. American journal of roentgenology 2007
Walter Hundt Esther L Yuh Mark D Bednarski Samira Guccione

OBJECTIVE The purpose of our study was to evaluate the effect of short-pulse high-intensity focused ultrasound (HIFU) on inducing cell death in a head and neck cancer model (SCCVII [squamous cell carcinoma]) compared with continuous HIFU to get a better understanding of the biologic changes caused by HIFU therapy. MATERIALS AND METHODS HIFU was applied to 12 SCCVII tumors in C3H/Km mice using...

Journal: :International journal of urology : official journal of the Japanese Urological Association 2010
Makoto Sumitomo Junichi Asakuma Akinori Sato Keiichi Ito Kazuhiko Nagakura Tomohiko Asano

OBJECTIVES To evaluate the long-term outcomes of transurethral resection of the prostate (TURP) immediately after high-intensity focused ultrasound (HIFU) treatment for prostate cancer (CaP). METHODS The present retrospective study included 65 CaP patients who underwent HIFU alone and 64 patients who underwent TURP immediately after HIFU. HIFU treatment was carried out using a Sonablate-500 H...

Journal: :Biological & pharmaceutical bulletin 2014
Nobuhito Hamano Yoichi Negishi Kyohei Takatori Yoko Endo-Takahashi Ryo Suzuki Kazuo Maruyama Takuro Niidome Yukihiko Aramaki

Ultrasound (US) is used in the clinical setting not only for diagnosis but also for therapy. As a therapeutic US technique, high-intensity focused ultrasound (HIFU) can be applied to treat cancer in a clinical setting. Microbubbles increased temperature and improved the low therapeutic efficiency under HIFU; however, microbubbles have room for improvement in size, stability, and targeting abili...

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