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https://www.readbyqxmd.com/read/28749166/ablative-safety-margin-depicted-by-fusion-imaging-with-post-treatment-contrast-enhanced-ultrasound-and-pre-treatment-cect-cemri-after-radiofrequency-ablation-for-liver-cancers
#1
Xiao-Wan Bo, Hui-Xiong Xu, Le-Hang Guo, Li-Ping Sun, Xiao-Long Li, Chong-Ke Zhao, Ya-Ping He, Bo-Ji Liu, Dan-Dan Li, Kun Zhang, Dan Wang
OBJECTIVES: To evaluate the value of fusion imaging with post-treatment contrast-enhanced ultrasound (CEUS) and pre-treatment contrast-enhanced computed tomography/magnetic resonance imaging (CECT/CEMRI) in evaluating ablative safety margin after percutaneous ultrasound (US)-guided radiofrequency ablation (RFA) for liver cancers. METHODS: 34 consecutive patients with 47 liver lesions who had undergone RFA were included. Fusion imaging with post-treatment CEUS and pre-treatment CECT/CEMRI was carried out to evaluate local treatment response and ablative safety margin within 1-3 days after RFA...
July 27, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28749010/radiofrequency-ablation-of-fast-ventricular-tachycardia-causing-an-icd-storm-in-an-infant-with-hypertrophic-cardiomyopathy
#2
Yakup Ergul, Isa Ozyilmaz, Meki Bilici, Erkut Ozturk, Sertaç Haydin, Alper Guzeltas
An implantable cardioverter defibrillator (ICD) storm involves very frequent arrhythmia episodes and ICD shocks, and it is associated with poor short-term and long-term prognosis. Radiofrequency catheter ablation (RFCA) can be used as an effective rescue treatment for patients with an ICD storm. To our knowledge, this is the first report of an infant with HCM presenting with an ICD storm and undergoing successful radiofrequency catheter ablation salvage treatment for the fast left posterior fascicular VT. This article is protected by copyright...
July 27, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28747522/pet-imaging-stability-measurements-during-simultaneous-pulsing-of-aggressive-mr-sequences-on-the-ge-signa-pet-mr
#3
Timothy W Deller, Mohammad Mehdi Khalighi, Floris P Jansen, Gary H Glover
The recent introduction of simultaneous whole-body PET/MR scanners has enabled new research taking advantage of the complementary information obtainable with PET and MR imaging. One such application is kinetic modeling, which requires high levels of PET quantitative stability. This challenges the task of isolating the two imaging subsystems from mutual interference. Performance measurements have previously been published demonstrating sufficient PET stability in the presence of MR pulsing for typical clinical use; however, PET stability during radiofrequency (RF)-intensive and gradient-intensive sequences has not previously been evaluated for a clinical whole-body scanner...
July 26, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28747272/efficacy-and-safety-of-radiofrequency-ablation-for-focal-hepatic-lesions-adjacent-to-gallbladder-reconfiguration-of-the-ablation-zone-through-probe-relocation-and-ablation-time-reduction
#4
In Young Choi, Pyo Nyun Kim, Sung Gu Lee, Hyung Jin Won, Yong Moon Shin
PURPOSE: To evaluate the safety and efficacy of radiofrequency (RF) ablation for treatment of focal hepatic lesions adjacent to the gallbladder with electrode relocation and ablation time reduction. MATERIALS AND METHODS: Thirty-nine patients who underwent RF ablation for focal hepatic lesions adjacent to the gallbladder (≤ 10 mm) were evaluated retrospectively from January 2011 to December 2014 (30 men and 9 women; age range, 51-85 y; mean age, 65 y). Of 36 patients with hepatocellular carcinoma, 3 had a second treatment for recurrence (mean tumor size, 15 mm ± 6)...
July 23, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28745399/average-treatment-effect-of-hepatic-resection-versus-locoregional-therapies-for-hepatocellular-carcinoma
#5
A Cucchetti, V Mazzaferro, A D Pinna, C Sposito, R Golfieri, C Serra, C Spreafico, F Piscaglia, A Cappelli, M Bongini, M Cucchi, M Cescon
BACKGROUND: When comparing the efficacy of surgical and non-surgical therapies for hepatocellular carcinoma (HCC), a major limitation is the causal inference problem. This concerns the impossibility of seeing both outcomes of two different treatments for the same individual at the same time because one is inevitably missing. This aspect can be addressed methodologically by estimating the so-called average treatment effect (ATE). METHODS: To estimate the ATE of hepatic resection over locoregional therapies for HCC, data from patients treated in two tertiary care settings between August 2000 and December 2014 were used to obtain counterfactual outcomes using an inverse probability weight survival adjustment...
July 26, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28745084/patient-with-unresectable-cholangiocarcinoma-treated-with-radiofrequency-hyperthermia-in-combination-with-chemotherapy-a-case-report
#6
Juyoung Ryu, Kangwook Lee, Changmug Joe, JongCheon Joo, Namhun Lee, Hwa-Seung Yoo
Hyperthermia, which is a noninvasive treatment that causes tumor cells to become heated and that works in synergy with anticancer drugs and radiation therapy, is emerging as a promising treatment for patients with cancer. The purpose of this study is to report the efficacy of hyperthermia combined with chemotherapy (gemcitabine/cisplatin) for the treatment of a patient with unresectable cholangiocarcinoma. A 54-year-old man was diagnosed as hilar cholangiocarcinoma (Klatskin tumor) and was administered neoadjuvant and preoperative radiation with chemotherapy...
July 1, 2017: Integrative Cancer Therapies
https://www.readbyqxmd.com/read/28745082/chinese-herbal-medicine-jian-pi-li-gan-decoction-improved-survival-of-nonresectable-hepatocellular-cancer-after-radiofrequency-ablation-a-retrospective-study
#7
Chengwu Tang, Wenming Feng, Lianjin Qin, Ying Bao
OBJECTIVE: To observe the effect of Jian Pi Li Gan Decoction (JPLGD) on long-term survival of nonresectable hepatocellular cancer (HCC) after radiofrequency ablation (RFA). METHODS: Between January 2010 and February 2013, 95 patients with nonresectable HCC treated by RFA in our hospital were enrolled, of whom 47 patients received JPLGD accompanying RFA (JPLGD group), and 48 patients received RFA alone (control group). Medical records of these patients were retrospectively analyzed...
July 1, 2017: Integrative Cancer Therapies
https://www.readbyqxmd.com/read/28744873/epicardial-ablation-of-tachyarrhythmia-in-children-experience-at-two-academic-centers
#8
Shailendra Upadhyay, Edward P Walsh, Frank Cecchin, John K Triedman, Juan Villafane, J Philip Saul
BACKGROUND: Experience with percutaneous epicardial ablation of tachyarrhythmia in pediatrics is limited. This case series addresses the feasibility, safety and complications of the procedure in children. METHODS: A total of 9 patients underwent 10 epicardial ablation procedures from 2002 to 2013 at two academic centers. Activation mapping was performed in all cases, and electro-anatomic map was utilized in 9 of the 10 procedures. Patients had undergone 1-3 failed endocardial catheter ablations in addition to medical management, and all had symptoms, a high-risk accessory pathway (AP), aborted cardiac arrest with Wolff-Parkinson-White syndrome (WPW) or ventricular dysfunction...
July 26, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28744835/advantages-of-laparoscopic-radiofrequency-ablation-over-percutaneous-radiofrequency-ablation-in-hepatocellular-carcinoma
#9
Hyuk Soo Eun, Byung Seok Lee, In Sun Kwon, Gee Young Yun, Eaum Seok Lee, Jong Seok Joo, Jae Kyu Sung, Hee Seok Moon, Sun Hyung Kang, Ju Seok Kim, Hae Jin Shin, Tae Kyun Kim, Kwangsik Chun, Seok Hyun Kim
BACKGROUND: Inoperable hepatocellular carcinoma (HCC) can be treated with laparoscopic radiofrequency ablation (LRFA), which is generally a more accurate and accessible procedure than percutaneous RFA (PRFA). However, few studies have compared survival outcomes between LRFA and PRFA in patients with HCC. AIMS: This study aimed to compare the efficacy of LRFA and PRFA for HCC treatment. METHODS: Patients who underwent PRFA or LRFA as an initial treatment modality between April 2005 and April 2016 were enrolled in this study...
July 25, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28744082/ct-guided-percutaneous-radiofrequency-ablation-of-osteoid-osteoma-our-experience-in-87-patients
#10
Anurag Chahal, Prathiba Rajalakshmi, Shah A Khan, Shishir Rastogi, Deep N Srivastava, Shivanand Gamanagatti
PURPOSE: To evaluate the technical and clinical success of radiofrequency ablation of osteoid osteoma and analyze the factors responsible for clinical success. We also tried to investigate the role of follow-up computed tomography (CT) imaging. MATERIALS AND METHODS: This is a prospective study approved by the institute's ethics committee involving 87 patients with appendicular osteoid osteoma. CT-guided radio frequency ablation was performed using a bipolar ablation system...
April 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28744081/early-outcomes-of-radiofrequency-ablation-in-unresectable-metastatic-colorectal-cancer-from-a-tertiary-cancer-hospital-in-india
#11
Suyash Kulkarni, Nitin S Shetty, Ashwin M Polnaya, Sushil Patil, Kunal Gala, Rahul Chivate, Vikas Ostwal, Anant Ramaswamy, Shailesh V Shrikhande, Mahesh Goel, Shraddha Patkar, Manish Bhandare, Venkatesh Rangarajan, Purandare Nilendu
AIMS: The study was carried out to evaluate the early outcomes using Radiofrequency Ablation (RFA) for unresectable liver metastases in the management of metastatic colorectal cancer (mCRC) from an area of low endemicity. MATERIAL AND METHODS: 60 Patients with unresectable colorectal liver metastases had undergone 88 sessions of RFA from January 2007 till December 2013. The results were retrospectively analysed to evaluate the outcomes in terms of efficacy and survival rates...
April 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28741577/comparison-of-new-generation-renal-artery-denervation-systems-assessing-lesion-size-and-thermodynamics-using-a-thermochromic-liquid-crystal-phantom-model
#12
Sara I Al Raisi, Michael T Barry, Pierre Qian, Abhishek Bhaskaran, Jim Pouliopoulos, Pramesh Kovoor
AIM: To evaluate and compare lesion dimensions and thermodynamics of the new generation multi-electrode Symplicity Spyral and the new generation multi-electrode EnligHTN renal artery denervation systems, using a thermochromic liquid crystal phantom model. METHODS AND RESULTS: A previously described renal artery phantom model was used as a platform for radiofrequency ablation. A total of 32 radiofrequency ablations were performed using multi-electrode Symplicity Spyral (n=16) and new generation EnligHTN systems (n=16)...
July 25, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28741377/renal-cell-carcinoma-alternative-nephron-sparing-treatment-options-for-small-renal-masses-a-systematic-review
#13
Fieke M Prins, Linda G W Kerkmeijer, Anne A Pronk, Evert-Jan P A Vonken, Richard P Meijer, Axel Bex, Maurits M Barendrecht
<i>Background</i> The standard treatment of T1 renal cell carcinoma is (partial-) nephrectomy. For patients where surgery is not the treatment of choice, for example in the elderly, in case of severe comorbidity, inoperability or refusal of surgery, alternative treatment options are available. These treatment options include active surveillance, radiofrequency ablation, cryoablation, microwave ablation or stereotactic body radiotherapy. In the present overview, the efficacy, safety and outcome of these different options are summarized, particularly focusing on recent developments...
July 25, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28738493/-a-case-of-high-impedance-inducedby-radiofrequency-catheter-ablation-of-accessory-pathway
#14
Q Y Zhang, B Jiang, M Liu
No abstract text is available yet for this article.
July 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28738333/updated-hypopharyngeal-surgery-for-sleep-apnea
#15
B Tucker Woodson
The failure of traditional upper airway surgery such as uvulopalatopharyngoplasty has been attributed to lower airway obstruction related to base of tongue collapse. Multiple procedures, including glossectomy, tongue base radiofrequency, genioglossus advancement, and tongue suspension techniques, have been advocated to improve success rates. No consensus exists on which subsets of patients are best treated by individual approaches and direct comparative data are lacking. The selection of procedures must be based on individual patient needs and the relative potential benefits and risks...
2017: Advances in Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28736982/understanding-the-influence-of-flow-velocity-wall-motion-filter-pulse-repetition-frequency-and-aliasing-on-power-doppler-image-quantification
#16
Maricy R Martins, Wellington P Martins, Carlos A M Soares, Andre H Miyague, Marek J Kudla, Theo Z Pavan
OBJECTIVES: Although power Doppler imaging has been used to quantify tissue and organ vascularity, many studies showed that limitations in defining adequate ultrasound machine settings and attenuation make such measurements complex to be achieved. However, most of these studies were conducted by using the output of proprietary software, such as Virtual Organ computer-aided analysis (GE Healthcare, Kretz, Zipf, Austria); therefore, many conclusions may not be generalizable because of unknown settings and parameters used by the software...
July 24, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28736949/simultaneous-measurement-of-brain-perfusion-and-labeling-efficiency-in-a-single-pseudo-continuous-arterial-spin-labeling-scan
#17
Zhensen Chen, Xihai Zhao, Xingxing Zhang, Rui Guo, Wouter M Teeuwisse, Bida Zhang, Peter Koken, Jouke Smink, Chun Yuan, Matthias J P van Osch
PURPOSE: The aim of this study was to propose, optimize, and validate a pseudo-continuous arterial spin labeling (pCASL) sequence for simultaneous measurement of brain perfusion and labeling efficiency. METHODS: The proposed sequence incorporates the labeling efficiency measurement into the postlabeling delay period of a conventional perfusion pCASL sequence by using the time-encoding approach. In vivo validation experiments were performed on nine young subjects by comparing it to separate perfusion and labeling efficiency sequences...
July 24, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28735423/the-anticoagulant-effect-of-heparin-during-radiofrequency-ablation-rfa-in-patients-taking-apixaban-or-rivaroxaban
#18
L C Brendel, F Dobler, G Hessling, J Michel, S L Braun, A L Steinsiek, P Groha, R Eckl, I Deisenhofer, A Hyseni, M Roest, I Ott, B Steppich
PURPOSE: Measuring the anticoagulant effect of heparin during radiofrequency ablation (RFA) in patients taking apixaban and rivaroxaban is challenging, since the activated coagulation time (ACT) does not seem to reflect the true anticoagulant activity of these drugs. We therefore evaluated coagulation properties of apixaban and rivaroxaban during RFA by different coagulation assays to better monitor periprocedural hemostasis. METHODS: The study included 90 patients (61 ± 12 years) with atrial fibrillation who underwent RFA procedures...
July 22, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28735201/ultrasound-elastography-of-the-prostate-using-an-unconstrained-modulus-reconstruction-technique-a-pilot-clinical-study
#19
REVIEW
Seyed Reza Mousavi, Hassan Rivaz, Gregory J Czarnota, Abbas Samani, Ali Sadeghi-Naini
A novel full-inversion-based technique for quantitative ultrasound elastography was investigated in a pilot clinical study on five patients for non-invasive detection and localization of prostate cancer and quantification of its extent. Conventional-frequency ultrasound images and radiofrequency (RF) data (~5 MHz) were collected during mechanical stimulation of the prostate using a transrectal ultrasound probe. Pre and post-compression RF data were used to construct the strain images. The Young's modulus (YM) images were subsequently reconstructed using the derived strain images and the stress distribution estimated iteratively using finite element (FE) analysis...
July 20, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28734973/minimally-invasive-approaches-to-myoma-management
#20
REVIEW
Julian A Gingold, Ndeye-Aicha Gueye, Tommaso Falcone
Patients affected by the presence of leiomyomas may incur a substantial physical, emotional, social and financial toll as well as losses in their quality of life. Although many myomas are not amenable to medical therapy or hysteroscopic resection, many others are amenable to minimally invasive surgical approaches. In patients who prefer to retain their fertility, laparoscopic myomectomy should be considered the intervention of choice. In this review we expand on the surgical techniques of both conventional laparoscopic and robotic-assisted myomectomies...
July 19, 2017: Journal of Minimally Invasive Gynecology
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