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Radiation bowel

Atallah Baydoun, Neha Vapiwala, Lee E Ponsky, Musaddiq Awan, Ali Kassaee, David Sutton, Tarun K Podder, Yuxia Zhang, Donald Dobbins, Raymond F Muzic, Bryan Traughber, Mitchell Machtay, Rodney Ellis
PURPOSE: We conducted this dosimetric analysis to evaluate the feasibility of a multi-center stereotactic body radiation therapy (SBRT) trial for renal cell carcinoma (RCC) using different SBRT platforms. MATERIALS/METHODS: The computed tomography (CT) simulation images of 10 patients with unilateral RCC previously treated on a Phase 1 trial at Institution 1 were anonymized and shared with Institution 2 after IRB approval. Treatment planning was generated through five different platforms aiming a total dose of 48 Gy in three fractions...
March 14, 2018: Journal of Applied Clinical Medical Physics
Mark Douglas Tyson, Tatsuki Koyama, Dan Lee, Karen E Hoffman, Matthew J Resnick, Xiao-Cheng Wu, Matthew R Cooperberg, Michael Goodman, Sheldon Greenfield, Ann S Hamilton, Mia Hashibe, Lisa E Paddock, Antoinette Stroup, Vivien Chen, Ralph Conwill, Dan McCollum, David F Penson, Daniel A Barocas
BACKGROUND: Whether prostate cancer severity modifies patient-reported functional outcomes after radical prostatectomy (RP) or external beam radiotherapy (EBRT) for localized cancer is unknown. OBJECTIVE: The purpose of this study was to determine whether differences in predicted function over time between RP and EBRT varied by risk group. DESIGN, SETTING, AND PARTICIPANTS: The Comparative Effectiveness Analysis of Surgery and Radiation (CEASAR) study is a prospective, population-based, observational study that enrolled men with localized prostate cancer in 2011-2012...
February 28, 2018: European Urology
A van Nunen, P P G van der Toorn, T C G Budiharto, D Schuring
BACKGROUND AND PURPOSE: Purpose of this study was to quantify the OAR dose for different position correction strategies, and to determine which strategy is most optimal for treating patients on the prostate and pelvic lymph nodes. MATERIALS AND METHODS: For 30 patients, four different treatment plans were made reflecting different correction strategies: online correction on bony anatomy; offline correction on bony anatomy; online correction on the prostate fiducials; using 1 cm margins around both CTVs...
February 28, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
David W Donnelly, Conan Donnelly, Therese Kearney, David Weller, Linda Sharp, Amy Downing, Sarah Wilding, Penny Wright, Paul Kind, James W F Catto, William R Cross, Malcolm D Mason, Eilis McCaughan, Richard Wagland, Eila Watson, Rebecca Mottram, Majorie Allen, Hugh Butcher, Luke Hounsome, Peter Selby, Dyfed Huws, David H Brewster, Emma McNair, Carol Rivas, Johana Nayoan, Mike Horton, Lauren Matheson, Adam W Glaser, Anna Gavin
OBJECTIVES: To provide intelligence on the prevalence of urinary, bowel and sexual dysfunction in Northern Ireland (NI) to act as a baseline for studies of prostate cancer (PCa) outcomes and to aid service provision within the general population. SUBJECTS AND METHODS: A cross-sectional postal survey of 10,000 men aged 40 and over in NI, age-matched to the distribution of men living with PCa. The EQ-5D-5L and EPIC-26 instruments were used to enable comparisons with PCa outcome studies...
February 28, 2018: BJU International
Koji Kase, Ryo Okada, Makoto Muto, Junichiro Watanabe, Naoya Sato, Yasuhide Kofunato, Teruhide Ishigame, Takashi Kimura, Akira Kenjo, Tatsuo Shimura, Shigeru Marubashi
We hereby report a case of long-term survival of the pancreatic tail cancer with a synchronous small liver metastasis. A 62- year-old male with pancreatic tail cancer was incidentally diagnosed with single tiny metastasis in the left medial section of the liver duringthe distal pancreatectomy. The lesion was also resected together with primary lesion. Since then, systemic chemotherapies such as gemcitabine(GEM)plus S-1 combination therapy, GEM alone therapy and S-1 alone therapy had been given to escape from recurrence...
February 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Courtney C Moreno, Thomas Jarrett, Brianna L Vey, Pardeep K Mittal, Elizabeth A Krupinski, David L Roberts
AIMS: To assess patient knowledge about colorectal cancer incidence and prognosis as well as willingness to undergo screening with various tests (eg, optical colonoscopy, stool-based tests, computed tomographic colonography (CTC)). MATERIALS AND METHODS: A survey was administered to consecutive patients of a general academic-based internal medicine clinic. RESULTS: Survey response rate was 86.3%. A majority of respondents (55%) reported being aware of general information about colorectal cancer, and 99% indicated a belief that colorectal cancer screening was a good idea...
January 6, 2018: Current Problems in Diagnostic Radiology
S Habernig, P Malle, K A Hausegger
BACKGROUND/CLINICAL ISSUE: Inflammatory bowel diseases are frequently seen in the clinical routine of a pediatric radiologist. The timely diagnosis of inflammatory bowel diseases in children is particularly important in acute cases. STANDARD RADIOLOGICAL METHODS/METHODOLOGICAL INNOVATIONS: This nonsystematic article intends to give an overview of the radiologic imaging methods for the diagnosis and work-up of pediatric patients with inflammatory bowel diseases...
February 23, 2018: Der Radiologe
Inês Pita, Fernando Magro
Treatment of Crohn's disease (CD) is intrinsically reliant on imaging techniques, due to the preponderance of small bowel disease and its transmural pattern of inflammation. Ultrasound (US), computed tomography (CT) and magnetic resonance imaging (MRI) are the most widely employed imaging methods and have excellent diagnostic accuracy in most instances. Some limitations persist, perhaps the most clinically relevant being the distinction between inflammatory and fibrotic strictures. In this regard, several methodologies have recently been tested in animal models and human patients, namely US strain elastography, shear wave elastography, contrast-enhanced US, magnetization transfer MRI and contrast dynamics in standard MRI...
2018: Therapeutic Advances in Gastroenterology
Bastien Rigaud, Antoine Simon, Maxime Gobeli, Caroline Lafond, Julie Leseur, Anais Barateau, Nicolas Jaksic, Joël Castelli, Danièle Williaume, Pascal Haigron, Renaud De Crevoisier
PURPOSE: In the context of adaptive radiation therapy (ART) for locally advanced cervical carcinoma (LACC), this study proposed an original cone-beam computed tomography (CBCT)-guided "Evolutive library" and evaluated it against four other known radiotherapy (RT) strategies. MATERIAL AND METHODS: For 20 patients who underwent intensity-modulated radiation therapy (IMRT) for LACC, three planning CTs (with empty [EB], intermediate [IB], and full [FB] bladder volumes), a CT scan at 20 Gy and bi-weekly CBCTs for 5 weeks were performed...
February 17, 2018: Medical Physics
Fernand Missohou
PURPOSE: Bowel is often the dose-limiting organ in curative pelvic irradiation because of radiation enteritis when dose exceeds 40 to 45 Gy. To limit radiation enteritis, a silicone tissue-expander prothesis (STEP) connected to a subcutaneous self-sealing valve was prospectively used in children undergoing pelvic or abdominal radiation therapy. This study reports the 15-year long-term outcomes of this prospective series. METHODS AND MATERIALS: Between 1987 and 2008, 29 children from 3 Paris institutions received pelvic radiation therapy after surgical placement of a STEP in the pelvis...
December 14, 2017: Practical Radiation Oncology
Kevin J Chang, David H Kim
CT colonography (CTC) has demonstrated equivalent accuracy to optical colonoscopy in the detection of clinically relevant polyps and tumors but this is only possible when technique is optimized. The two most important features of a high-quality CTC are a well-prepared colon and a distended colon. This article will discuss the dietary, bowel preparation, and fecal/fluid tagging options to best prepare the colon. Strategies to optimally distend the colon will also be discussed. CT scan techniques including patient positioning and radiation dose optimization will be reviewed...
February 15, 2018: Abdominal Radiology
Fei Sjöberg, Dilip Kumar Malipatlolla, Piyush Patel, Ulrica Wilderäng, Marie Kalm, Gunnar Steineck, Cecilia Bull
BACKGROUND AND PURPOSE: Traditionally, elastase has been used to study exocrine activity of the pancreas in patients with chronic pancreatitis and cystic fibrosis, and calprotectin as a marker for gut-wall inflammation in patients with inflammatory bowel disease. The aim of the study was to find out whether elastase and calprotectin could be used as inflammatory markers for radiation-induced gut wall injury of the distal bowel. MATERIAL AND METHODS: Adult male mice were exposed to two, three, or four fractions of 6 Gy or 8 Gy irradiation to the sigmoid and rectum of the large bowel, using a linear accelerator...
February 15, 2018: Acta Oncologica
Salah G Aoun, Mary Ashley Liu, Megan Still, Tarek Y El Ahmadieh, Mazin Al Tamimi, Wayne Gluf
BACKGROUND: The management of dermoid cysts can be tedious as they have a tendency to recur, and respond poorly to chemotherapy and radiation. Management is especially difficult for tumors involving highly eloquent areas such as the conus medullaris. OBJECTIVE: We aim to provide a summary of the pathology, clinical presentation, and operative management strategies of dermoid cysts involving the conus medullaris. METHODS: Two clinical cases of dermoid cysts of the conus are presented, as well as a commented surgical video...
February 10, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
M M Hennessy, I Ivanovski, C B Ó Súilleabháin
INTRODUCTION: Trichotillomania and trichotillophagia can result in huge intraluminal coagulations of hair. Rarely, these can present with gastric perforation. This work has been reported in line with the SCARE criteria (Agha et al., 2016) [1]. PRESENTATION OF CASE: We report the case of a 15 year old girl who attended the emergency department with abdominal pain and vomiting. Ultrasound abdomen and pelvis identified free fluid within the pelvis concerning for inflammatory bowel disease...
February 10, 2018: International Journal of Surgery Case Reports
Kathryn L Taylor, George Luta, Richard M Hoffman, Kimberly M Davis, Tania Lobo, Yingjun Zhou, Amethyst Leimpeter, Jun Shan, Roxanne E Jensen, David S Aaronson, Stephen K Van Den Eeden
As many as 40% of men diagnosed with prostate cancer have low-risk disease, which results in the need to decide whether to undergo active treatment (AT) or active surveillance (AS). The treatment decision can have a significant effect on general and prostate-specific quality of life (QOL). The purpose of this study was to assess the QOL among men with low-risk prostate cancer during the first year following diagnosis. In a prospective cohort study, we conducted pretreatment telephone interviews (N = 1,139; 69...
February 7, 2018: Translational Behavioral Medicine
Kazuro Kikkawa, Akinori Iba, Yasuo Kohjimoto, Yasutaka Noda, Tetsuo Sonomura, Isao Hara
OBJECTIVES: To evaluate age-related quality of life changes in patients with localized prostate cancer treated by high-dose rate brachytherapy combined with external beam radiation therapy. METHODS: A total of 172 patients with clinically localized prostate cancer were categorized to age groups <75 years and ≥75 years. Changes in their quality of life were evaluated using the Japanese version of Medical Outcome Study 8-Items Short Form Health Survey, Expanded Prostate Cancer Index Composite and International Index of Erectile Function-5 at baseline, and followed up to 24 months after treatment...
February 4, 2018: International Journal of Urology: Official Journal of the Japanese Urological Association
S Keisin Wang, Ashley R Gutwein, Alok K Gupta, Gary W Lemmon, Alan P Sawchuk, Raghu L Motaganahalli, Michael P Murphy, Andres Fajardo
OBJECTIVE: The Zenith Fenestrated (ZFEN; Cook Medical, Bloomington, Ind) aortic stent graft system was approved for commercial use by the Food and Drug Administration in April 2012. We report our single-center experience of 100 consecutive patients treated with the ZFEN platform from October 2012 to March 2017. METHODS: A retrospective review of our prospectively maintained fenestrated endovascular aneurysm repair (FEVAR) database at a tertiary care academic institution located in the Midwest United States was performed for descriptive analysis...
January 27, 2018: Journal of Vascular Surgery
Dirk Van de Putte, Christelle Demarquay, Elke Van Daele, Lara Moussa, Christian Vanhove, Marc Benderitter, Wim Ceelen, Piet Pattyn, Noëlle Mathieu
Cancer patients treated with radiotherapy (RT) could develop severe late side effects that affect their quality of life. Long-term bowel complications after RT are mainly characterized by a transmural fibrosis that could lead to intestinal obstruction. Today, surgical resection is the only effective treatment. However, preoperative RT increases the risk of anastomotic leakage. In this study, we attempted to use mesenchymal stromal cells from adipose tissue (Ad-MSCs) to improve colonic anastomosis after high-dose irradiation...
December 2017: Cell Transplantation
S Grozinsky-Glasberg, G Kaltsas, M Kaltsatou, N Lev-Cohain, A Klimov, V Vergadis, I Uri, A I Bloom, D J Gross
BACKGROUND: Liver metastases are common in patients with neuroendocrine tumors (NETs), having a negative impact on disease prognosis. The options for selective therapy in patients with unresectable multiple liver metastases are limited to TACE (transarterial chemoembolization), TAE (transarterial embolization), or SIRT (selective internal radiation therapy). AIM: To explore the clinical outcome, survival and safety of these therapies in NETs patients. METHODS: Retrospective case series of consecutive patients (mean age 56...
January 30, 2018: Endocrine
Dominik A Sieron, Moritz Steib, Dominik Suter, Verena C Obmann, Adrian T Huber, Lukas Ebner, Daniel Inderbitzin, Andreas Christe
AIMS OF THE STUDY: To investigate the computed tomography (CT) density of frequently administered medications (1) for the better characterisation of substances on abdominal CT, (2) to allow radiologists to narrow down possibilities in the identification of hyperdense material in the bowel and (3) to provide forensic doctors with a tool to identify gastric contents before an autopsy. MATERIAL AND METHODS: From the list of the local hospital pharmacy, the 50 most frequently used medications were identified and scanned twice with a 128 row CT scanner (Acquillion, Toshiba, Tokyo, Japan)...
January 29, 2018: Swiss Medical Weekly
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