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Contouring guideline

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https://www.readbyqxmd.com/read/29297232/dosimetric-quantification-of-the-incidental-irradiation-of-the-true-deep-ano-inguinal-lymphatic-drainage-of-anal-cancer-patients-not-described-in-conventional-contouring-guidelines
#1
Hendrik Dapper, Gregor Habl, Christoph Hirche, Stefan Münch, Markus Oechsner, Michael Mayinger, Christina Sauter, Stephanie E Combs, Daniel Habermehl
INTRODUCTION: The ano-inguinal lymphatic drainage (AILD) is located in the subcutaneous adipose tissue of the proximal medial thigh. Findings from fluorescence methods give us new information about anatomical conditions of the AILD. Current contouring guidelines do not advise the inclusion of the 'true' AILD into the clinical target volume (CTV). Aim of this work was the retrospective analysis of the incidental dose to the AILD in an anal cancer (AC) patient cohort who underwent definitive chemoradiation (CRT) therapy with Volumetric Arc Therapy - Intensity Modulated Radiation Therapy (VMAT-IMRT)...
January 3, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29296041/verification-of-dosimetric-commissioning-accuracy-of-intensity-modulated-radiation-therapy-and-volumetric-modulated-arc-therapy-delivery-using-task-group-119-guidelines
#2
Karunakaran Kaviarasu, N Arunai Nambi Raj, Misba Hamid, A Ananda Giri Babu, Lingampally Sreenivas, Kammari Krishna Murthy
Aim: The purpose of this study is to verify the accuracy of the commissioning of intensity-modulated radiation therapy (IMRT) and volumetric-modulated arc therapy (VMAT) based on the recommendation of the American Association of Physicists in Medicine Task Group 119 (TG-119). Materials and Methods: TG-119 proposes a set of clinical test cases to verify the accuracy of IMRT planning and delivery system. For these test cases, we generated two sets of treatment plans, the first plan using 7-9 IMRT fields and a second plan utilizing two-arc VMAT technique for both 6 MV and 15 MV photon beams...
October 2017: Journal of Medical Physics
https://www.readbyqxmd.com/read/29204531/axillary-lymph-node-coverage-with-3-dimensional-tangential-field-irradiation-and-correlation-with-heart-and-lung-dose
#3
Geraldine Jacobson, Nicole Bunda-Randall, Sijin Wen, Matthew Miller
Purpose: The American College of Surgeons Oncology Group Z0011 trial indicated no benefit from axillary lymph node (LN) dissection after a positive sentinel LN biopsy in patients receiving breast irradiation, suggesting that level I-II LNs were covered in tangential fields. Methods and materials: We evaluated 50 computed tomography-based tangential breast plans and contoured level I-III axillary LNs using the Radiation Therapy Oncology Group guidelines. The volumes of level I-III LN regions covered by 90% and 95% of the prescription dose (PD) were calculated and correlated with the V20 ipsilateral lung and mean heart dose...
October 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/29204170/locally-advanced-squamous-cell-cervical-cancer-in-a-patient-with-septate-uterus
#4
Guler Yavas, Cagdas Yavas, Gokcen Inan
A 33-year-old premenopausal multiparous woman with the history of septate uterus was referred to the hospital with menorrhagia and inter-menstrual bleeding occurring for the last 6 months. Work-up revealed a stage IIB cervical cancer. The patient underwent curative chemo/radiotherapy. The patient's septate uterus presented several difficulties during application. Brachytherapy was applied using standard computed tomography-compatible tandem and ovoids. The high-risk clinical target volume (HR-CTV), intermediate risk CTV, and organs at risk were contoured according to the Groupe Européen de Curiethérapie - European Society for Radiology and Oncology (GEC-ESTRO) guidelines...
October 2017: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/29184741/psychometric-validation-of-the-body-q-in-danish-patients-undergoing-weight-loss-and-body-contouring-surgery
#5
Lotte Poulsen, Anne Klassen, Michael Rose, Kirsten K Roessler, Claus Bogh Juhl, René Klinkby Støving, Stefan Cano, Jens Ahm Sørensen
Background: A well-developed patient-reported outcome instrument is needed for use in Danish bariatric and body contouring patients. The BODY-Q is designed to measure changes in important patient outcomes over the entire patient journey, from obesity to post-body contouring surgery. The current study aims to psychometrically validate the BODY-Q for use in Danish patients. Methods: The process consisted of 3 stages: translation and linguistic validation, field-test, and data analysis...
October 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/29178865/palliative-care-for-patients-with-parkinson-s-disease-study-protocol-for-a-mixed-methods-study
#6
Herma Lennaerts, Marieke Groot, Maxime Steppe, Jenny T van der Steen, Marieke Van den Brand, Dorian van Amelsvoort, Kris Vissers, Marten Munneke, Bastiaan R Bloem
BACKGROUND: Parkinson's disease (PD) is a chronic, progressive neurological disorder with many intractable consequences for patients and their family caregivers. Little is known about the possibilities that palliative care could offer to patients and their proxies. Guidelines strongly recommend palliative care to improve the quality of life and - if needed - the quality of dying. However, providing palliative care to persons with PD involves specific challenges. For example, a timely initiation of palliative interventions is difficult because due to the gradually progressive nature of PD, there is often no clear marker for the transition from curative towards palliative care...
November 25, 2017: BMC Palliative Care
https://www.readbyqxmd.com/read/29174123/intraoperative-anesthetic-management-of-lung-transplantation-center-specific-practices-and-geographic-and-centers-size-differences
#7
Roland Tomasi, David Betz, Sophie Schlager, Tobias Kammerer, Dominik J Hoechter, Thomas Weig, Peter Slinger, Laura V Klotz, Bernhard Zwißler, Nandor Marczin, Vera von Dossow
OBJECTIVE: Although increasing evidence in lung transplantation (LTx) suggests that intraoperative management could influence outcomes, there are no guidelines available regarding intraoperative management of LTx. The overall goal of the study was to assess geographic and center volume-specific clinical practices in perioperative management. DESIGN: Prospective data analysis. SETTING: Online survey from a single-center university hospital...
May 17, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29157748/consensus-contouring-guidelines-for-postoperative-completely-resected-cavity-stereotactic-radiosurgery-for-brain-metastases
#8
Hany Soliman, Mark Ruschin, Lilyana Angelov, Paul D Brown, Veronica L S Chiang, John P Kirkpatrick, Simon S Lo, Anita Mahajan, Kevin S Oh, Jason P Sheehan, Scott G Soltys, Arjun Sahgal
PURPOSE: To propose contouring guidelines based on consensus contours generated by 10 international experts for cavity stereotactic radiosurgery (SRS), an emerging treatment option after surgical resection of brain metastases. No guidelines for contouring the surgical cavity volume have been previously reported. METHODS AND MATERIALS: Ten postoperative completely resected cases with varying clinical scenarios and locations within the brain were selected. For each case, 10 experts independently contoured the surgical cavity clinical target volume (CTV)...
October 4, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29153889/3d-qsar-studies-on-indole-and-7-azoindole-derivatives-as-rock-2-inhibitors-an-integrative-computational-approach
#9
Santhosh Kumar Nagarajan, Sathya Babu, Honglae Sohn, Panneer Devaraju, Thirumurthy Madhavan
Rho Kinases (ROCK) has been found to regulate a wide range of fundamental cell functions such as contraction, motility, proliferation, and apoptosis. Recent experiments have defined new functions of ROCKs in cells, including centrosome positioning and cell-size regulation, which might contribute to various physiological and pathological states. In this study, we have performed pharmacophore modeling and 3D QSAR studies on a series of 36 indoles and 7-azoindoles derivatives as ROCK2 inhibitors to elucidate the structural variations with their inhibitory activities...
October 9, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/29153464/international-guideline-for-the-delineation-of-the-clinical-target-volumes-ctv-for-nasopharyngeal-carcinoma
#10
Anne W Lee, Wai Tong Ng, Jian Ji Pan, Sharon S Poh, Yong Chan Ahn, Hussain AlHussain, June Corry, Cai Grau, Vincent Grégoire, Kevin J Harrington, Chao Su Hu, Dora L Kwong, Johannes A Langendijk, Quynh Thu Le, Nancy Y Lee, Jin Ching Lin, Tai Xiang Lu, William M Mendenhall, Brian O'Sullivan, Enis Ozyar, Lester J Peters, David I Rosenthal, Yoke Lim Soong, Yungan Tao, Sue S Yom, Joseph T Wee
PURPOSE: Target delineation in nasopharyngeal carcinoma (NPC) often proves challenging because of the notoriously narrow therapeutic margin. High doses are needed to achieve optimal levels of tumour control, and dosimetric inadequacy remains one of the most important independent factors affecting treatment outcome. METHOD: A review of the available literature addressing the natural behaviour of NPC and correlation between clinical and pathological aspects of the disease was conducted...
November 15, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29123013/68ga-psma-pet-ct-mapping-of-prostate-cancer-biochemical-recurrence-following-radical-prostatectomy-in-270-patients-with-psa-1-0ng-ml-impact-on-salvage-radiotherapy-planning
#11
Jérémie Calais, Johannes Czernin, Minsong Cao, Amar U Kishan, John V Hegde, Narek Shaverdian, Kiri A Sandler, Fang-I Chu, Chris R King, Michael L Steinberg, Isabel Rausher, Nina-Sophie Schmidt-Hegemann, Thorsten Poeppel, Philipp Hetkamp, Francesco Ceci, Ken Herrmann, Wolfgang P Fendler, Matthias Eiber, Nicholas G Nickols
Background: Target volume delineations for prostate cancer (PCa) salvage radiotherapy (SRT) after radical prostatectomy are usually drawn in the absence of visibly recurrent disease. Gallium-68 Prostate Specific Membrane Antigen Positron Emission Tomography/Computed Tomography (68Ga-PSMA-11 PET/CT) detects recurrent PCa with sensitivity superior to standard of care imaging at serum prostate specific antigen (PSA) values low enough to impact target volume delineations for routine SRT. OBJECTIVE: To i) map the recurrence pattern of PCa early biochemical recurrence (BCR) after radical prostatectomy with 68Ga-PSMA-11 PET/CT in patients with serum PSA levels <1 ng/ml, ii) determine how often consensus clinical target volumes (CTV) based on the Radiation Therapy Oncology Group (RTOG) guidelines cover 68Ga-PSMA-11 PET/CT-defined disease, and iii) assess the potential impact of 68Ga-PSMA-11 PET/CT on SRT...
November 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29113782/interobserver-variability-in-rectum-contouring-in-high-dose-rate-brachytherapy-for-prostate-cancer-a-multi-institutional-prospective-analysis
#12
Rodolfo Chicas-Sett, Francisco Celada-Alvarez, Susana Roldan, Silvia Rodriguez-Villalba, Miguel Santos-Olias, Pablo Soler-Catalan, Blanca Ibanez-Rosello, Leoncio Arribas, Alejandro Tormo, Jose M Benlloch, Jose Perez-Calatayud
PURPOSE: The aim of this study was to evaluate the interobserver variability (IOV) of rectum contouring, and its dosimetric consequences, for high-dose-rate brachytherapy in patients with prostate cancer across multiple institutions. METHODS AND MATERIALS: Five radiation oncologists contoured rectums in 10 patients on transperineal ultrasound image sets after establishing a delineation consensus. The D0.1cc, D1cc, and D2cc rectum volume parameters were determined...
November 4, 2017: Brachytherapy
https://www.readbyqxmd.com/read/29040400/treatment-of-gastrocnemius-muscle-hypertrophy-with-botulinum-toxin-injection-followed-by-magnetic-resonance-imaging-assessment-and-3-dimensional-evaluation
#13
Melia Bogari, Andy Tan, Yu Xin, Gang Chai, Li Lin, Peiru Min, Yan Zhang, Yixin Zhang
Background: Hypertrophy of the gastrocnemius muscle is considered to be a hindrance to lower leg beauty in the Asian aesthetic market. A noninvasive technique that has been gaining recognition involves botulinum toxin A injection; however, there are no proper guidelines or standardized protocols for the administration of botulinum toxin to correct gastrocnemius hypertrophy. Objectives: This study sought to determine the most effective botulinum toxin injection method for correcting the contour of the lower leg calf, as well as to determine the dose that can produce the maximum effect in meeting the demands of the physician and patient...
October 16, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29040346/heterogeneity-in-body-contouring-outcomes-based-research-the-pittsburgh-body-contouring-complication-reporting-system
#14
Rachel A Guest, Dalit Amar, Sharona Czerniak, Stephanie E Dreifuss, Mark A Schusterman, Elizabeth M Kenny, Eva F Chernoff, Joshua M Barnett, Kathleen R Koesarie, Jeffrey A Gusenoff
Background: Body contouring complications after massive weight loss (MWL) vary significantly in frequency and type. Currently, no standardized recommendations exist regarding which complications are most important to report. Objectives: We aim to provide a guideline for complication reporting in the body contouring literature. The Pittsburgh Body Contouring Complication Reporting System (PBCCRS) will aid in risk stratification of body contouring procedures and will decrease under-, over-, and nonreporting of complications...
June 15, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28987748/consequences-of-introducing-geometric-gtv-to-ctv-margin-expansion-in-dahanca-contouring-guidelines-for-head-and-neck-radiotherapy
#15
Christian Rønn Hansen, Jørgen Johansen, Eva Samsøe, Elo Andersen, Jørgen B B Petersen, Kenneth Jensen, Lisbeth J Andersen, Hella M B Sand, Anders S Bertelsen, Cai Grau
BACKGROUND AND PURPOSE: Defining margins around the Gross Tumour Volume (GTV) to create a Clinical Target Volume (CTV) for head and neck cancer radiotherapy has traditionally been based on presumed knowledge of anatomical routes of spread. However, using a concentric geometric expansion around the GTV may be more reproducible. The purpose of this study was to analyse the inter-observer consistency of geometric CTV delineation with adaptation for anatomical boundaries versus anatomically defined CTVs...
October 4, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28946731/managing-complications-in-abdominoplasty-a-literature-review
#16
Pedro Vidal, Juan Enrique Berner, Patrick A Will
BACKGROUND: Abdominoplasty, with or without liposuction, is among the most frequently performed aesthetic procedures. Its main objective is to improve the body contour by means of excising redundant skin and fat tissue. Although abdominoplasty is considered a safe procedure with high satisfaction rates, intraoperative and postoperative complications can become a challenge for the surgical team. The aim of this article is to offer a synopsis of the most common complications arising after abdominoplasty, along with evidence-based guidelines about how to prevent and treat them...
September 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28946723/selection-of-implants-in-unilateral-prosthetic-breast-reconstruction-and-contralateral-augmentation
#17
Soo Jung Kim, Seung Yong Song, Dae Hyun Lew, Dong Won Lee
BACKGROUND: In breast reconstruction using implants after unilateral mastectomy, it is challenging to create a natural, ptotic contour, and asymmetry is a potential drawback. To achieve breast symmetry and an ideal shape for both breasts, we performed contralateral augmentation in patients undergoing breast reconstruction with implants. METHODS: Patients underwent unilateral mastectomy and 2-stage reconstruction. During the second stage of the procedure, contralateral augmentation mammoplasty was performed...
September 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28937638/effects-of-processing-parameters-on-surface-roughness-of-additive-manufactured-ti-6al-4v-via-electron-beam-melting
#18
Pan Wang, Wai Jack Sin, Mui Ling Sharon Nai, Jun Wei
As one of the powder bed fusion additive manufacturing technologies, electron beam melting (EBM) is gaining more and more attention due to its near-net-shape production capacity with low residual stress and good mechanical properties. These characteristics also allow EBM built parts to be used as produced without post-processing. However, the as-built rough surface introduces a detrimental influence on the mechanical properties of metallic alloys. Thereafter, understanding the effects of processing parameters on the part's surface roughness, in turn, becomes critical...
September 22, 2017: Materials
https://www.readbyqxmd.com/read/28888744/-stereotactic-body-radiotherapy-for-liver-tumors-state-of-the-art
#19
REVIEW
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...
October 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
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
#20
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
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