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Microwave Ablation

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https://www.readbyqxmd.com/read/29770302/percutaneous-microwave-thermosphere-ablation-of-pancreatic-tumours
#1
Anna Maria Ierardi, Pierpaolo Biondetti, Andrea Coppola, Enrico Maria Fumarola, Alberto Magenta Biasina, Salvatore Alessio Angileri, Gianpaolo Carrafiello
Background: In oncologic field, thermo-ablative procedures have spread more and more. Percutaneous microwave ablation (MWA) showed same benefits and some advantages over radiofrequency ablation (RFA). To date, a disadvantage of both was the not totally predictable size and shape of ablation volume. The aim of this study was to assess feasibility and safety of MWA in nonresectable pancreatic head cancer using a new technology of MW with high power (100 W) and frequency of 2,450 MH. Methods: Five patients with pancreatic head cancer treated with percutaneous MWA under ultrasound guidance were retrospectively reviewed...
April 2018: Gland Surgery
https://www.readbyqxmd.com/read/29760553/a-favorable-outcome-of-advanced-dermatofibrosarcoma-protuberans-under-treatment-with-sunitinib-after-imatinib-failure
#2
Wei Xiao, Yi Que, Ruiqing Peng, Ya Ding, Jingjing Zhao, Xizhi Wen, Desheng Weng, Xiaoshi Zhang, Yuanxiang Guan, Xing Zhang
While traditional cytotoxic agents play a limited role in advanced dermatofibrosarcoma protuberans (DFSP), the treatment of sunitinib for patients with advanced DFSP after imatinib failure is not well defined. The objective of this case report was to analyze the relationship between molecular mechanisms and clinical outcomes of sunitinib treatment in patients with advanced DFSP after imatinib failure. In this case report, a 37-year-old man suffered from advanced DFSP progression after surgical operation, microwave ablation, and chemotherapy...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29754849/combination-therapies-quantifying-the-effects-of-transarterial-embolization-on-microwave-ablation-zones
#3
Erica M Knavel, Chelsey M Green, Annette Gendron-Fitzpatrick, Christopher L Brace, Paul F Laeseke
PURPOSE: To quantify the effect of transarterial embolization on microwave (MW) ablations in an in vivo porcine liver model. MATERIALS AND METHODS: Hepatic arteriography and cone-beam computed tomography (CT) scans were performed in 6 female domestic swine. Two lobes were embolized to an endpoint of substasis with 100-300-μm microspheres. MW ablations (65 W, 5 min) were created in embolized (n = 15) and nonembolized (n = 12) liver by using a 2.45-GHz system and single antenna...
May 10, 2018: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29740688/the-safety-and-efficacy-of-oxycodone-versus-fentanyl-in-percutaneous-microwave-ablation-of-a-liver-tumour-abutting-the-capsule
#4
Wen-Tao Wu, Zhen-Yu Jia, Yu Chen, Qi-Feng Chen, Qing-Quan Zu, Zheng-Qiang Yang, Sheng Liu, Hai-Bin Shi
PURPOSE: The present study compared the safety and efficacy of oxycodone with those of fentanyl under non-intubated general anaesthesia in percutaneous microwave ablation (MWA) of a liver tumour abutting the capsule. MATERIALS AND METHODS: Thirty-eight patients underwent MWA of liver cancers abutting the capsule. Patients received 0.1 mg/kg oxycodone (O group) or 1 μg/kg fentanyl (F group) prior to the start of ablation. Both groups received continuous infusions of propofol for non-intubated general anaesthesia during ablation...
May 8, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29728899/stereotactically-navigated-percutaneous-microwave-ablation-mwa-compared-to-conventional-mwa-a-matched-pair-analysis
#5
L P Beyer, L Lürken, N Verloh, M Haimerl, K Michalik, J Schaible, C Stroszczynski, P Wiggermann
PURPOSE: To compare CT-navigated stereotactic microwave ablation (SMWA) to non-navigated conventional MWA (CMWA) for percutaneous ablation of liver malignancies. METHODS: A matched pair analysis of 36 patients who underwent MWA of primary or secondary liver malignancies (10 hepatocellular carcinoma and 8 metastases) was conducted. A total of 18 patients undergoing SMWA were included in this prospective study. Patients were matched in terms of tumor size, liver segment and entity to retrospective CMWA procedures...
May 4, 2018: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/29720001/microwave-ablation-with-chemoembolization-for-large-hepatocellular-carcinoma-in-patients-with-cirrhosis
#6
Hao Hu, Guo Feng Chen, Wei Yuan, Jian Hua Wang, Bo Zhai
OBJECTIVE: To evaluate the safety and long-term outcomes of microwave ablation (MWA) combined with transarterial chemoembolization (TACE) in a single stage for the treatment of hepatocellular carcinoma (HCC) with a maximum diameter of 5.0-10.0 cm. METHODS: From January 2013 to December 2016, 84 consecutive HCC patients with cirrhosis from two medical centers who underwent MWA-TACE as a first-line treatment for up to three HCCs with maximum diameters of 5.0-10...
May 2, 2018: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29704203/safety-and-efficacy-of-synchronous-robotic-surgery-for-colorectal-cancer-with-liver-metastases
#7
REVIEW
Rozana H Dwyer, Matthew J Scheidt, J Stephen Marshall, Steven S Tsoraides
Timing of resection and treatment of colorectal cancer (CRC) with liver metastases varies based on patient characteristics and center protocols. Concerns of increased morbidity and mortality (M&M) related to anesthetic time and blood loss have limited widespread adaptation of synchronous colorectal and liver resections. Furthermore, technical challenges have made minimally invasive synchronous resections less common. We present our series of synchronous robotic surgery for CRC with liver metastases. Retrospective review of prospectively collected data of patients with stage IV CRC with liver metastases treated at a tertiary center from February 2013 to June 2014...
April 27, 2018: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/29685527/survival-of-patients-with-non-resectable-chemotherapy-resistant-colorectal-cancer-liver-metastases-undergoing-conventional-lipiodol-based-transarterial-chemoembolization-ctace-palliatively-versus-neoadjuvantly-prior-to-percutaneous-thermal-ablation
#8
Thomas J Vogl, Maximilian Lahrsow, Moritz H Albrecht, Renate Hammerstingl, Zachary M Thompson, Tatjana Gruber-Rouh
PURPOSE: To determine overall (OS) and progression-free survival (PFS) for cTACE alone and in combination with percutaneous thermal ablation in patients with non-resectable, chemotherapy-resistant colorectal cancer liver metastases (CRLM). MATERIAL AND METHODS: The study included 452 patients undergoing 2654 repetitive cTACE treatments of CRLM. 233 patients were treated palliatively using only cTACE, whereas 219 patients were treated with cTACE in a neoadjuvant intend with subsequent thermal ablation (either microwave ablation or laser-induced thermotherapy)...
May 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29684251/image-guided-chemical-and-thermal-ablations-for-thyroid-disease-review-of-efficacy-and-complications
#9
REVIEW
Iain J Nixon, Peter Angelos, Ashok R Shaha, Alessandra Rinaldo, Michelle D Williams, Alfio Ferlito
Image-guided ablation of thyroid disease is increasingly being commonly reported. Techniques including ethanol injection and thermal ablation using radio-frequency, laser, and microwave devices have been described. Minimally invasive approaches to the management of benign cystic, solid, and functional thyroid nodules as well as both primary and recurrent thyroid malignancy have been reported. The purpose of this article is to review the current evidence relating to image-guided ablation of thyroid disease with a focus on clinical outcomes and complication rates for patients treated with this minimally invasive approach...
April 23, 2018: Head & Neck
https://www.readbyqxmd.com/read/29679219/rf-ablation-pattern-shaping-employing-switching-channels-of-dual-bipolar-needle-electrodes-ex-vivo-results
#10
Jens Ziegle, Chloé Audigier, Johannes Krug, Ghazanfar Ali, Younsu Kim, Emad M Boctor, Michael Friebe
PURPOSE: Radiofrequency (RF) ablation with mono- or bipolar electrodes is a common procedure for hepatocellular carcinoma (HCC) with a low rate of recurrence for small size tumors. For larger lesions and/or non-round/ellipsoid shapes RF ablation has some limitations and generally does not achieve comparable success rates to microwave ablation or high-intensity focused ultrasound therapies. MATERIALS AND METHODS: To shape RF ablations for matching a tumor size and geometry, we have developed an electronic channel switch box for two bipolar needles that generates multiple selectable ablation patterns...
April 20, 2018: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/29675308/quantifying-optical-properties-with-visible-and-near-infrared-optical-coherence-tomography-to-visualize-esophageal-microwave-ablation-zones
#11
Ryan C Niemeier, Sevde Etoz, Daniel A Gil, Melissa C Skala, Christopher L Brace, Jeremy D Rogers
Microwave ablation is a minimally invasive image guided thermal therapy for cancer that can be adapted to endoscope use in the gastrointestinal (GI) tract. Microwave ablation in the GI tract requires precise control over the ablation zone that could be guided by high resolution imaging with quantitative contrast. Optical coherence tomography (OCT) provides ideal imaging resolution and allows for the quantification of tissue scattering properties to characterize ablated tissue. Visible and near-infrared OCT image analysis demonstrated increased scattering coefficients ( μs ) in ablated versus normal tissues (Vis: 347...
April 1, 2018: Biomedical Optics Express
https://www.readbyqxmd.com/read/29666906/radiofrequency-and-microwave-ablation-compared-to-systemic-chemotherapy-and-to-partial-hepatectomy-in-the-treatment-of-colorectal-liver-metastases-a-systematic-review-and-meta-analysis
#12
Martijn R Meijerink, Robbert S Puijk, Aukje A J M van Tilborg, Kirsten Holdt Henningsen, Llenalia Garcia Fernandez, Mattias Neyt, Juanita Heymans, Jacqueline S Frankema, Koert P de Jong, Dick J Richel, Warner Prevoo, Joan Vlayen
PURPOSE: To assess safety and outcome of radiofrequency ablation (RFA) and microwave ablation (MWA) as compared to systemic chemotherapy and partial hepatectomy (PH) in the treatment of colorectal liver metastases (CRLM). METHODS: MEDLINE, Embase and the Cochrane Library were searched. Randomized trials and comparative observational studies with multivariate analysis and/or matching were included. Guidelines from National Guideline Clearinghouse and Guidelines International Network were assessed using the AGREE II instrument...
April 17, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29665588/current-technique-and-application-of-percutaneous-cryotherapy
#13
Andreas H Mahnken, Alexander Marc König, Jens Holger Figiel
PURPOSE:  Local ablative therapies have become an established treatment option in interventional oncology. Radiofrequency ablation (RFA) and microwave ablation (MWA) are a standard of care in the treatment of hepatocellular carcinoma (HCC). Currently, there is an increasing interest in cryotherapy, one of the oldest ablation techniques. It has some unique characteristics with regard to technology and mechanism of action. MATERIALS AND METHODS:  A systematic literature search using the terms cryotherapy, cryosurgery and cryoablation was performed...
April 17, 2018: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29643953/individualized-laparoscopic-b-ultrasound-guided-microwave-ablation-for-multifocal-primary-liver-cancer
#14
Zhifeng Xu, Zhangwei Yang, Jianghua Pan, Yiren Hu
Introduction: Liver cancer is one of the most common malignancies of the digestive system. Minimally invasive ablation procedures have become one of the major means for treating unresectable multifocal liver cancer and have been extensively applied in primary and metastatic liver cancer treatment. Laparoscopic B-ultrasound-guided microwave ablation is an example of the progress made in this field. Aim: To analyze and summarize the results of and experience with laparoscopic B-ultrasound-guided microwave ablation for multifocal primary liver cancer; moreover, the ablation effects were compared between tumors of different sizes...
March 2018: Wideochirurgia i Inne Techniki Mało Inwazyjne, Videosurgery and Other Miniinvasive Techniques
https://www.readbyqxmd.com/read/29628298/thermal-ablation-of-t1c-renal-cell-carcinoma-a-comparative-assessment-of-technical-performance-procedural-outcome-and-safety-of-microwave-ablation-radiofrequency-ablation-and-cryoablation
#15
Wenhui Zhou, Ronald S Arellano
PURPOSE: To evaluate perioperative outcomes of thermal ablation with microwave (MW), radiofrequency (RF), and cryoablation for stage T1c renal cell carcinoma (RCC). MATERIALS AND METHODS: A retrospective analysis of 384 patients (mean age, 71 y; range, 22-88 y) was performed between October 2006 and October 2016. Mean radius, exophytic/endophytic, nearness to collecting system or sinus, anterior/posterior, and location relative to polar lines; preoperative aspects and dimensions used for anatomic classification; and centrality index scores were 6...
April 6, 2018: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29626285/image-guided-minimally-invasive-treatment-for-small-renal-cell-carcinoma
#16
REVIEW
Miltiadis E Krokidis, Panagiotis Kitrou, Stavros Spiliopoulos, Dimitrios Karnabatidis, Konstantinos Katsanos
Surgical partial nephrectomy is still considered as the "gold standard" for the definitive management of small malignant renal masses, whereas treatment with image-guided percutaneous ablation is still mainly reserved for those patients who cannot undergo nephron-sparing surgical resection due to advanced age, underlying comorbidities or compromised renal function. Nonetheless, the recent evidence that underlines the long-term oncological equipoise of percutaneous ablation methods with surgical resection in combination with the reduced complication rate and cost supports the use of an image-guided minimally invasive approach as a first-line treatment...
April 6, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29625559/dynamic-imaging-and-pathological-changes-in-pig-liver-after-mr-guided-microwave-ablation
#17
Jun Dong, Xiaojing Geng, Yadi Yang, Xiuyu Cai, Pili Hu, Liangping Xia, Bei Zhang, Peihong Wu
BACKGROUND: Magnetic resonance (MR)-guided microwave ablation is a well-developed technique for the treatment of tumors, especially hepatic carcinomas. However, there are no detailed reports on the changes in the MR images and histology observed after the ablation. This study aimed to dynamically map the pathological changes after ablation and the changes occurring on MR images. METHODS: We performed MR-guided microwave ablation in 10 Wuzhishan pigs and obtained an MR scan immediately after ablation (0 weeks) and at 1, 2, 3, and 4 weeks after ablation...
April 6, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29622051/infectious-complications-of-cryoablation-and-microwave-ablation-in-metastatic-solid-tumors
#18
Ashish Bhargava, Harsha V Banavasi, Pranatharthi H Chandrasekar
Cryoablation and microwave ablation are commonly used techniques to reduce tumor burden in unresectable neoplasms. This retrospective study demonstrated low risk for infectious complications (1.4%) following these invasive procedures. Abscess formation was the most common infection around the ablation sites. All infections were successfully treated with imaging-guided drainage and antibiotics.Infect Control Hosp Epidemiol 2018;1-4.
April 6, 2018: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/29613843/intraprocedural-ablation-margin-assessment-by-using-ammonia-perfusion-pet-during-fdg-pet-ct-guided-liver-tumor-ablation-a-pilot-study
#19
Paul B Shyn, Leigh C Casadaban, Nisha I Sainani, Cheryl A Sadow, Paul M Bunch, Vincent M Levesque, Chun K Kim, Victor H Gerbaudo, Stuart G Silverman
Purpose To prospectively determine whether nitrogen 13 (13 N) ammonia perfusion positron emission tomography (PET) during fluorine 18 fluorodeoxyglucose (FDG) PET/computed tomography (CT)-guided liver tumor ablation can be used to intraprocedurally assess ablation margins. Materials and Methods Eight patients (five women and three men; age range, 36-74 years; mean age, 57 years) were enrolled in this pilot study and underwent FDG PET/CT-guided microwave ablation of 11 FDG-avid liver metastases (mean diameter, 22 mm; range, 11-34 mm)...
April 3, 2018: Radiology
https://www.readbyqxmd.com/read/29610787/the-pure-rotational-spectrum-of-the-t-shaped-alc-2-radical-x-combining-tilde-2-a-1
#20
D T Halfen, L M Ziurys
The pure rotational spectrum of the AlC2 radical (X[combining tilde]2A1) has been measured using Fourier transform microwave/millimeter-wave (FTMmmW) techniques in the frequency range 21-65 GHz. This study is the first high-resolution spectroscopic investigation of this molecule. AlC2 was created in a supersonic jet from the reaction of aluminum, generated by laser ablation, with a mixture of CH4 or HCCH, diluted in argon, in the presence of a DC discharge. Three transitions (NKa,Kc = 101 → 000, 202 → 101, and 303 → 202) were measured, each consisting of multiple fine/hyperfine components, resulting from the unpaired electron in the species and the aluminum-27 nuclear spin (I = 5/2)...
April 3, 2018: Physical Chemistry Chemical Physics: PCCP
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