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14 papers 25 to 100 followers
By Alessandro Franciscon doctor
Kai Joachim Borm, Julia Voppichler, Mathias Düsberg, Markus Oechsner, Tibor Vag, Wolfgang Weber, Stephanie Elisabeth Combs, Marciana Nona Duma
PURPOSE: The aim of this study was to localize locoregional lymph node metastases using positron emission tomography with fluorine 18-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) data sets in a large cohort of patients and to evaluate the existing Radiation Therapy Oncology Group (RTOG) clinical target volume (CTV) and the European Society for Radiation Therapy & Oncology (ESTRO) CTV contouring guidelines. METHODS AND MATERIALS: A total of 235 patients with 580 FDG/PET-CT positive locoregional lymph node metastases were included in our analysis...
August 14, 2018: International Journal of Radiation Oncology, Biology, Physics
Vincent Grégoire, Kian Ang, Wilfried Budach, Cai Grau, Marc Hamoir, Johannes A Langendijk, Anne Lee, Quynh-Thu Le, Philippe Maingon, Chris Nutting, Brian O'Sullivan, Sandro V Porceddu, Benoit Lengele
In 2003, a panel of experts published a set of consensus guidelines for the delineation of the neck node levels in node negative patients (Radiother Oncol, 69: 227-36, 2003). In 2006, these guidelines were extended to include the characteristics of the node positive and the post-operative neck (Radiother Oncol, 79: 15-20, 2006). These guidelines did not fully address all nodal regions and some of the anatomic descriptions were ambiguous, thereby limiting consistent use of the recommendations. In this framework, a task force comprising opinion leaders in the field of head and neck radiation oncology from European, Asian, Australia/New Zealand and North American clinical research organizations was formed to review and update the previously published guidelines on nodal level delineation...
January 2014: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
Birgitte V Offersen, Liesbeth J Boersma, Carine Kirkove, Sandra Hol, Marianne C Aznar, Albert Biete Sola, Youlia M Kirova, Jean-Philippe Pignol, Vincent Remouchamps, Karolien Verhoeven, Caroline Weltens, Meritxell Arenas, Dorota Gabrys, Neil Kopek, Mechthild Krause, Dan Lundstedt, Tanja Marinko, Angel Montero, John Yarnold, Philip Poortmans
No abstract text is available yet for this article.
January 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
William Small, Loren K Mell, Penny Anderson, Carien Creutzberg, Jennifer De Los Santos, David Gaffney, Anuja Jhingran, Lorraine Portelance, Tracey Schefter, Revathy Iyer, Mahesh Varia, Kathryn Winter, Arno J Mundt
PURPOSE: To develop an atlas of the clinical target volume (CTV) definitions for postoperative radiotherapy of endometrial and cervical cancer to be used for planning pelvic intensity-modulated radiotherapy. METHODS AND MATERIALS: The Radiation Therapy Oncology Group led an international collaboration of cooperative groups in the development of the atlas. The groups included the Radiation Therapy Oncology Group, Gynecologic Oncology Group, National Cancer Institute of Canada, European Society of Therapeutic Radiology and Oncology, and American College of Radiology Imaging Network...
June 1, 2008: International Journal of Radiation Oncology, Biology, Physics
Charlotte L Brouwer, Roel J H M Steenbakkers, Jean Bourhis, Wilfried Budach, Cai Grau, Vincent Grégoire, Marcel van Herk, Anne Lee, Philippe Maingon, Chris Nutting, Brian O'Sullivan, Sandro V Porceddu, David I Rosenthal, Nanna M Sijtsema, Johannes A Langendijk
PURPOSE: The objective of this project was to define consensus guidelines for delineating organs at risk (OARs) for head and neck radiotherapy for routine daily practice and for research purposes. METHODS: Consensus guidelines were formulated based on in-depth discussions of a panel of European, North American, Asian and Australian radiation oncologists. RESULTS: Twenty-five OARs in the head and neck region were defined with a concise description of their main anatomic boundaries...
October 2015: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
Victoria A Harris, John Staffurth, Olivia Naismith, Alikhan Esmail, Sarah Gulliford, Vincent Khoo, Rebecca Lewis, John Littler, Helen McNair, Azmat Sadoyze, Christopher Scrase, Aslam Sohaib, Isabel Syndikus, Anjali Zarkar, Emma Hall, David Dearnaley
PURPOSE: The purpose of this study was to establish reproducible guidelines for delineating the clinical target volume (CTV) of the pelvic lymph nodes (LN) by combining the freehand Royal Marsden Hospital (RMH) and Radiation Therapy Oncology Group (RTOG) vascular expansion techniques. METHODS AND MATERIALS: Seven patients with prostate cancer underwent standard planning computed tomography scanning. Four different CTVs (RMH, RTOG, modified RTOG, and Prostate and pelvIs Versus prOsTate Alone treatment for Locally advanced prostate cancer [PIVOTAL] trial) were created for each patient, and 6 different bowel expansion margins (BEM) were created to assess bowel avoidance by the CTV...
July 15, 2015: International Journal of Radiation Oncology, Biology, Physics
Abraham J Wu, Walter R Bosch, Daniel T Chang, Theodore S Hong, Salma K Jabbour, Lawrence R Kleinberg, Harvey J Mamon, Charles R Thomas, Karyn A Goodman
PURPOSE/OBJECTIVE(S): Current guidelines for esophageal cancer contouring are derived from traditional 2-dimensional fields based on bony landmarks, and they do not provide sufficient anatomic detail to ensure consistent contouring for more conformal radiation therapy techniques such as intensity modulated radiation therapy (IMRT). Therefore, we convened an expert panel with the specific aim to derive contouring guidelines and generate an atlas for the clinical target volume (CTV) in esophageal or gastroesophageal junction (GEJ) cancer...
July 15, 2015: International Journal of Radiation Oncology, Biology, Physics
R Martinez-Monge, P S Fernandes, N Gupta, R Gahbauer
Virtual three-dimensional clinical target volume definition requires the identification of areas suspected of containing microscopic disease (frequently related to nodal stations) on a set of computed tomographic (CT) images, rather than the traditional approach based on anatomic landmarks. This atlas displays the clinically relevant nodal stations and their correlation with normal lymphatic pathways on a set of CT images.
June 1999: Radiology
Robert J Myerson, Michael C Garofalo, Issam El Naqa, Ross A Abrams, Aditya Apte, Walter R Bosch, Prajnan Das, Leonard L Gunderson, Theodore S Hong, J J John Kim, Christopher G Willett, Lisa A Kachnic
PURPOSE: To develop a Radiation Therapy Oncology Group (RTOG) atlas of the elective clinical target volume (CTV) definitions to be used for planning pelvic intensity-modulated radiotherapy (IMRT) for anal and rectal cancers. METHODS AND MATERIALS: The Gastrointestinal Committee of the RTOG established a task group (the nine physician co-authors) to develop this atlas. They responded to a questionnaire concerning three elective CTVs (CTVA: internal iliac, presacral, and perirectal nodal regions for both anal and rectal case planning; CTVB: external iliac nodal region for anal case planning and for selected rectal cases; CTVC: inguinal nodal region for anal case planning and for select rectal cases), and to outline these areas on individual computed tomographic images...
July 1, 2009: International Journal of Radiation Oncology, Biology, Physics
Minh Tam Truong, Rohini N Nadgir, Ariel E Hirsch, Rathan M Subramaniam, Jimmy W Wang, Rebecca Wu, Melin Khandekar, A Omer Nawaz, Osamu Sakai
With the increasing use of intensity-modulated radiation therapy (IMRT) for the treatment of head and neck cancer, radiation oncologists are expected to have an in-depth knowledge of the computed tomographic (CT) and magnetic resonance (MR) imaging anatomy of this region to be able to accurately characterize tumor extent and define organs at risk for potential radiation injury. The brachial plexus is a complex anatomic structure in the head and neck adjacent to diseased nodes and elective nodal volumes (ie, nodal areas that are prophylactically treated because they are at high risk for micrometastatic disease) and should, therefore, be carefully identified and contoured at CT prior to IMRT planning...
July 2010: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Maurizio Portaluri, Santa Bambace, Celeste Perez, Grazia Angone
PURPOSE: To demonstrate that margins of each pelvic chain may be derived by verifying the bony and soft tissue structures around abnormal nodes on computed tomography (CT) slices. METHODS AND MATERIALS: Twenty consecutive patients (16 males, 4 females; mean age, 66 years; range, 43-80 years) with radiologic diagnosis of nodal involvement by histologically proved cervix carcinoma (two), rectum carcinoma (three), prostate carcinoma (four), lymphoma (five), penis carcinoma (one), corpus uteri carcinoma (one), bladder carcinoma (two), cutis tumor (one), and soft-tissue sarcoma (one) were retrospectively reviewed...
November 15, 2005: International Journal of Radiation Oncology, Biology, Physics
Heather D Pacholke, Robert J Amdur, Ilona M Schmalfuss, Debbie Louis, William M Mendenhall
The purpose of this study was to establish guidelines that help radiation oncologists contour the inner and middle ear on treatment planning scans. The radiotherapy computed tomography (CT) scans of 15 previously treated patients were reviewed for the ability to identify 3 separate auditory structures. The middle ear, the cochlea, and the vestibular apparatus were identified and contoured on each scan using anatomic landmarks. The volume and maximum axial dimension of each contour were calculated. The middle ear, cochlea, and vestibular apparatus were identified on all scans...
April 2005: American Journal of Clinical Oncology
Mary Feng, Jean M Moran, Todd Koelling, Aamer Chughtai, June L Chan, Laura Freedman, James A Hayman, Reshma Jagsi, Shruti Jolly, Janice Larouere, Julie Soriano, Robin Marsh, Lori J Pierce
PURPOSE: Cardiac toxicity is an important sequela of breast radiotherapy. However, the relationship between dose to cardiac structures and subsequent toxicity has not been well defined, partially due to variations in substructure delineation, which can lead to inconsistent dose reporting and the failure to detect potential correlations. Here we have developed a heart atlas and evaluated its effect on contour accuracy and concordance. METHODS AND MATERIALS: A detailed cardiac computed tomography scan atlas was developed jointly by cardiology, cardiac radiology, and radiation oncology...
January 1, 2011: International Journal of Radiation Oncology, Biology, Physics
Salma K Jabbour, Sameh A Hashem, Walter Bosch, Tae Kyoung Kim, Steven E Finkelstein, Bethany M Anderson, Edgar Ben-Josef, Christopher H Crane, Karyn A Goodman, Michael G Haddock, Joseph M Herman, Theodore S Hong, Lisa A Kachnic, Harvey J Mamon, Jason R Pantarotto, Laura A Dawson
PURPOSE: To standardize upper abdominal normal organ contouring guidelines for Radiation Therapy Oncology Group (RTOG) trials. METHODS AND MATERIALS: Twelve expert radiation oncologists contoured the liver, esophagus, gastroesophageal junction (GEJ), stomach, duodenum, and common bile duct (CBD), and reviewed and edited 33 additional normal organ and blood vessel contours on an anonymized patient computed tomography (CT) dataset. Contours were overlaid and compared for agreement using MATLAB (MathWorks, Natick, MA)...
March 2014: Practical Radiation Oncology
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