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https://www.readbyqxmd.com/read/28941961/survival-impact-of-cardiac-dose-following-lung-stereotactic-body-radiotherapy
#1
Olive Y Wong, Vivian Yau, Julie Kang, Daniel Glick, Patricia Lindsay, Lisa W Le, Alexander Sun, Andrea Bezjak, B C John Cho, Andrew Hope, Meredith Giuliani
INTRODUCTION: The purpose of this study was to determine the impact of radiation dose to substructures of the heart in lung stereotactic body radiotherapy (SBRT) patients on non-cancer-related deaths. METHODS: Patients treated with lung SBRT at a single institution from 2005 to 2013 were included. The heart and its substructures were contoured, and dose was calculated including mean, max, and max 10 cc dose. Clinical variables including stage, histology, age, gender, Charlson comorbidity index (CCI), preexisting cardiac disease, pulmonary function (forced expiratory volume in 1 second, diffusion capacity), and smoking status were explored for association with non-cancer-related deaths in univariable (UVA) and multivariable (MVA) analyses...
August 31, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28940691/long-term-follow-up-on-patients-treated-for-abdominal-fat-using-a-selective-contactless-radiofrequency-device
#2
Klaus Fritz, Carmen Salavastru
BACKGROUND AND OBJECTIVE: The aim of this study was to evaluate how abdominal circumferential reduction achieved after using a noninvasive radiofrequency device (BTL Vanquish, BTL Industries Inc., Boston, MA) evolves over a 4-year period. METHODS: This is a follow-up on patients who were treated in our practice for abdominal fat in an earlier published multicenter prospective study. Patients were recalled for biometric data collection 4 years (±60 days) after the last treatment...
September 22, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28931343/impact-of-bowel-gas-and-body-outline-variations-on-total-accumulated-dose-with-intensity-modulated-proton-therapy-in-locally-advanced-cervical-cancer-patients
#3
Thomas Berger, Jørgen Breede Baltzer Petersen, Jacob Christian Lindegaard, Lars Ulrik Fokdal, Kari Tanderup
INTRODUCTION: Density changes occurring during fractionated radiotherapy in the pelvic region may degrade proton dose distributions. The aim of the study was to quantify the dosimetric impact of gas cavities and body outline variations. MATERIAL AND METHODS: Seven patients with locally advanced cervical cancer (LACC) were analyzed through a total of 175 daily cone beam computed tomography (CBCT) scans. Four-beams intensity-modulated proton therapy (IMPT) dose plans were generated targeting the internal target volume (ITV) composed of: primary tumor, elective and pathological nodes...
September 21, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28930342/yolk-shell-nanocomposite-particles-as-bioactive-bone-fillers-and-growth-factor-carriers
#4
Pujiang Shi, Sunny A Abbah, Yon Jin Chuah, Jun Li, Yong Zhang, Pengfei He, Hee Kit Wong, James C H Goh
The efficient delivery of bioactive molecules via rationally designed nanoparticles is an important focus in regenerative medicine. The yolk shell nanocomposite particles described herein are composed of silk fibroin movable cores formed within voided calcium carbonate shells to load and control the release of labile cytokines. These particles are excellent carrier vehicles of potent molecules as they sustained the release of bioactive Bone Morphogenetic Protein 2 (BMP-2) for more than 28 days in vitro. Implantation into bone defects in rabbits corroborates the in vitro results and also reveals that upon contact with phosphate containing body fluids, implanted yolk shell particles agglomerate and transform into a filler that adapts to defect contour to further act as an absorbable hemostatic agent...
September 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28927550/assessing-dose-variance-from-immobilization-devices-in-vmat-head-and-neck-treatment-planning-a-retrospective-case-study-analysis
#5
Alyssa Olson, Kristine Phillips, Tamara Eng, Nishele Lenards, Ashley Hunzeker, Daniel Lewis, Douglas Baumann
Immobilization devices serve several purposes in radiation oncology including improved positional reproducibility and decreased patient movement. If immobilization device beam attenuation is unaccounted for in the treatment planning process, planning target volume (PTV) coverage can be compromised. A retrospective case study was performed to evaluate beam attenuation from head and neck (HN) immobilization devices in volumetric-modulated arc therapy using the Eclipse treatment planning system and the Anisotropic Analytical Algorithm...
September 15, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28922982/porcine-mesothelium-wrapped-diced-cartilage-grafts-for-nasal-reconstruction
#6
Athanasios Bramos, David P Perrault, Alexander N Fedenko, Gene H Kim, Sofia Bougioukli, Jay R Lieberman, Jay W Calvert, Alex Wong
<b>Background:</b> Fascia wrapped diced cartilage grafts have become a useful tool in modern rhinoplasty surgery. Unfortunately, fascial harvest is associated with donor site morbidity, therefore a non-autologous alternative to fascia would be ideal. Decellularized porcine mesothelium, Meso BioMatrix<sup>TM</sup>, is an acellular scaffold that could potentially fill this need. To determine if porcine mesothelium could serve as an acceptable alternative, we histologically compared diced cartilage grafts wrapped in fascia versus porcine mesothelium...
September 19, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28919003/inter-observer-agreement-in-gtv-delineation-of-bone-metastases-on-ct-and-impact-of-mr-imaging-a-multicenter-study
#7
A S Gerlich, J M van der Velden, A N T J Kotte, C L Tseng, G Fanetti, W S C Eppinga, N Kasperts, M P W Intven, F A Pameijer, M E P Philippens, H M Verkooijen, E Seravalli
BACKGROUND AND PURPOSE: The use of Stereotactic Body Radiotherapy (SBRT) for bone metastases is increasing rapidly. Therefore, knowledge of the inter-observer differences in tumor volume delineation is essential to guarantee precise dose delivery. The aim of this study is to compare inter-observer agreement in bone metastases delineated on different imaging modalities. MATERIAL AND METHODS: Twenty consecutive patients with bone metastases treated with SBRT were selected...
September 14, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28914834/-plasma-management-in-complex-treatment-of-late-inflammatory-complications-after-injection-contour-plasty-with-polyacrylamide-gel
#8
A M Shulutko, E G Osmanov, I V Novikova, S L Chochiya, V P Seredin, A D Macharadze
AIM: To improve the results of treatment of late inflammatory complications after injection contour plasty with polyacrylamide gel. MATERIAL AND METHODS: The authors analyze treatment of 21 patients with late septic complications of body contour plasty with polyacrylamide gel (PAGE) for the period 2010-2015. Mean age of women was 47.4 years. Time after primary intervention was 10-22 years. The depth of soft tissue lesion corresponded to II-III grade by D. Ahrenholz classification (1991), length - from 67 to 180 cm2...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28913353/the-effects-of-low-intensity-ultrasound-on-fat-reduction-of-rat-model
#9
Bill Zhou, Benny Yuk Kin Leung, Lei Sun
Nonfocused low-intensity ultrasound is generally believed to be less efficacious than High-Intensity Focused Ultrasound (HIFU) at body fat reduction; nevertheless, this technology has already been widely used clinically for body contouring purposes. This study aimed to evaluate the efficacy and safety of this new technology by applying 1 MHz nonfocused ultrasound at 3 W/cm(2) to the outer-thigh region of rat models. Ultrasonography measurement demonstrated an average reduction of 0.5 mm of subcutaneous fat thickness that persisted for at least three days after treatment...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28913158/dosimetry-and-first-human-experience-with-89-zr-panitumumab
#10
Liza Lindenberg, Stephen Adler, Ismail B Turkbey, Francesca Mertan, Anita Ton, Khanh Do, Shivaani Kummar, Esther Mena Gonzalez, Sibaprasad Bhattacharyya, Paula M Jacobs, Peter Choyke
(89)Zr-panitumumab is a novel immuno-PET radiotracer. A fully humanized IgG2 antibody, panitumumab binds with high affinity to the extracellular ligand binding domain of EGFR. Immuno-PET with radiolabeled panitumumab is a non-invasive method that could characterize EGFR expression in tumors and metastatic lesions. It might also assist in selecting patients likely to benefit from targeted therapy as well as monitor response and drug biodistribution for dosing guidance. Our objective was to calculate the maximum dosing for effective imaging with minimal radiation exposure in a small subset...
2017: American Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28912128/aging-modifies-the-effect-of-cardiac-output-on-middle-cerebral-artery-blood-flow-velocity
#11
Anne-Sophie G T Bronzwaer, Jasper Verbree, Wim J Stok, Mat J A P Daemen, Mark A van Buchem, Matthias J P van Osch, Johannes J van Lieshout
An association between cerebral blood flow (CBF) and cardiac output (CO) has been established in young healthy subjects. As of yet it is unclear how this association evolves over the life span. To that purpose, we continuously recorded mean arterial pressure (MAP; finger plethysmography), CO (pulse contour; CO-trek), mean blood flow velocity in the middle cerebral artery (MCAV; transcranial Doppler ultrasonography), and end-tidal CO2 partial pressure (PetCO2) in healthy young (19-27 years), middle-aged (51-61 years), and elderly subjects (70-79 years)...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28890821/feasibility-and-reproducibility-of-substituting-oral-contrast-with-water-for-duodenal-volume-delineation-in-patients-undergoing-pancreatic-stereotactic-body-radiotherapy
#12
Guangyin Wu, Vivek Verma, Matthias F Haefner, Sicong Li, Chi Lin
BACKGROUND: This is the first known report evaluating the feasibility of substituting oral contrast with water in efforts to delineate the duodenum for pancreatic stereotactic body radiotherapy (SBRT). METHODS: From January 2015 to August 2016, 13 patients were simulated after ingestion of 8 ounces of water approximately 15-20 min prior to their simulation scan. We examined the feasibility of contouring the duodenum thereafter, and measured the duodenal volume as well as its variation...
August 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28888744/-stereotactic-body-radiotherapy-for-liver-tumors-state-of-the-art
#13
O Riou, D Azria, F Mornex
Thanks to the improvement in radiotherapy physics, biology, computing and imaging, patients presenting with liver tumors can be efficiently treated by radiation. Radiotherapy has been included in liver tumors treatment guidelines at all disease stages. Liver stereotactic radiotherapy has to be preferred to standard fractionated radiotherapy whenever possible, as potentially more efficient because of higher biological equivalent dose. Liver stereotactic radiotherapy planning and delivery require extensive experience and optimal treatment quality at every step, thus limiting its availability to specialized centres...
September 6, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28870056/-application-of-autologous-fat-grafting-in-breast-reconstruction
#14
L Cai, X F Han, B Q Wang, F C Li
Objective: To observe the outcome of breast reconstruction with autologous fat grafting in the patients following treatment for breast cancer. Methods: The clinical data of 22 patients after breast cancer modified radical mastectomy with fat grafting for breast reconstruction from January 2012 to March 2015 at Department of Body Contouring and Liposuction Center of Plastic Surgery, Hospital of Peking Union Medical College were analyzed retrospectively. The age of 22 patients (all female) was 28 to 54 years...
September 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28866897/superior-target-delineation-for-stereotactic-body-radiotherapy-of-bone-metastases-from-renal-cell-carcinoma-on-mri-compared-to-ct
#15
Fieke M Prins, Joanne M van der Velden, Anne S Gerlich, Alexis N T J Kotte, Wietse S C Eppinga, Nicolien Kasperts, Jorrit J Verlaan, Frank A Pameijer, Linda G W Kerkmeijer
BACKGROUND: In metastatic renal cell carcinoma (mRCC) there has been a treatment shift towards targeted therapy, which has resulted in improved overall survival. Therefore, there is a need for better local control of the tumor and its metastases. Image-guided stereotactic body radiotherapy (SBRT) in bone metastases provides improved symptom palliation and local control. With the use of SBRT there is a need for accurate target delineation. The hypothesis is that MRI allows for better visualization of the extend of bone metastases in mRCC and will optimize the accuracy of tumor delineation for stereotactic radiotherapy purposes, compared with CT only...
July 11, 2017: Annals of Palliative Medicine
https://www.readbyqxmd.com/read/28858933/male-body-contouring
#16
Kyle M Coleman, Naomi Lawrence
BACKGROUND: Men are increasingly seeking out cosmetic procedures, especially minimally and noninvasive body-contouring procedures. OBJECTIVE: With the relative lack of scientific evidence related specifically to the use of body-contouring procedures in men, there is a need for more education and scientific discussion in this growing group. MATERIALS AND METHODS: Understanding the male anatomy and esthetics, and how body-contouring techniques and new modalities can be used in men, can lead to better outcomes...
August 29, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28845829/reduction-mammoplasty-techniques-in-post-bariatric-patients-our-experience
#17
Susanna Polotto, Michele P Grieco, Francesco Simonacci, Nicolò Bertozzi, Federico Marchesi, Eugenio Grignaffini, Edoardo Raposio
BACKGROUND AND AIM OF THE WORK: Excessive body weight represents a huge problem affecting a wide part of world population, causing significant physical and psychological consequences. To solve their obesity-related problems, patients should begin a bariatric treatment to lose an adequate percentage of their body mass and therefore, they should be subjected to body contouring surgery. In this article we describe our experience in applying breast remodeling techniques to post-bariatric patients...
August 23, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28844506/-stereotactic-body-radiation-therapy-for-hepatic-malignancies-organs-at-risk-uncertainties-margins-doses
#18
T Lacornerie, E Rio, M-A Mahé
Stereotactic body radiation therapy for primary and metastatic hepatic malignancies can be performed in association and/or as an alternative to surgery and radiofrequency. The consequences of the great number of techniques available are heterogeneity in contouring, dose prescription and in determination of dose constraints for organs at risk. The objective of this paper is to improve the quality and safety and to help the diffusion of this technique for a majority of patients. In 2016, the French Society of Radiation Oncology (SFRO) published guidelines for external radiotherapy and brachytherapy ("Recorad")...
August 24, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28843375/mr-opera-a-multicenter-multivendor-validation-of-magnetic-resonance-imaging-only-prostate-treatment-planning-using-synthetic-computed-tomography-images
#19
Emilia Persson, Christian Gustafsson, Fredrik Nordström, Maja Sohlin, Adalsteinn Gunnlaugsson, Karin Petruson, Niina Rintelä, Kristoffer Hed, Lennart Blomqvist, Björn Zackrisson, Tufve Nyholm, Lars E Olsson, Carl Siversson, Joakim Jonsson
PURPOSE: To validate the dosimetric accuracy and clinical robustness of a commercially available software for magnetic resonance (MR) to synthetic computed tomography (sCT) conversion, in an MR imaging-only workflow for 170 prostate cancer patients. METHODS AND MATERIALS: The 4 participating centers had MriPlanner (Spectronic Medical), an atlas-based sCT generation software, installed as a cloud-based service. A T2-weighted MR sequence, covering the body contour, was added to the clinical protocol...
June 16, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28841610/discussion-patient-reported-outcomes-in-weight-loss-and-body-contouring-surgery-a-cross-sectional-analysis-using-the-body-q
#20
Samuel J Lin
No abstract text is available yet for this article.
September 2017: Plastic and Reconstructive Surgery
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