View clinical trials related to Pelvic Cancer.
Filter by:Evaluation of clinical and dosimetric aspects, tolerance, and effectiveness of abdominal-pelvic region radiotherapy treatments in patients undergoing radiotherapy for primary or secondary neoplasms localized in the tabdominal-pelvic region.
The primary objective of radiation therapy is to deliver a therapeutic dose of radiation precisely to the target while minimizing exposure to healthy surrounding tissues. Image-guided radiation therapy (IGRT) involves acquiring cone beam computed tomography (CBCT) scans just before or during treatment sessions. By comparing the CBCT images with the reference images from the treatment planning process, clinicians can make necessary adjustments to ensure precise targeting and account for any changes that may have occurred since the initial planning. Conventional CBCT technology is, however, limited by several factors including long acquisition times that result in motion artifacts in the image, smaller fields of view that limit the volume of anatomy that can be imaged, poor image quality that limits soft tissue visibility, and artifacts created by dense metal implants. This study will evaluate a novel CBCT imaging solution ("HyperSight") that has the potential to address the challenges of conventional CBCT.
Cone beam computed tomography (CBCT) images are routinely used in radiation treatment delivery workflows to align patients with the treatment beam. Conventional CBCT image quality is sufficient for this task but not good enough for other radiotherapy-related tasks, such as contouring anatomical structures and calculating radiation dose distributions. HyperSight is a new CBCT imaging system manufactured by Varian Medical Systems. The purpose of this study is to evaluate the integration of the HyperSight imaging system with Varian's TrueBeam radiotherapy system, a linear accelerator with a C-arm gantry that rotates about the patient to delivery radiation to the target malignancy. HyperSight CBCT images will be acquired prospectively from patients who are receiving radiation treatment. The HyperSight/TrueBeam system will be used for imaging only; patients receive their radiation treatment on cleared devices and no aspect of their treatment is affected by participation in the study. HyperSight images collected during the study will be evaluated for quality and utility and compared to conventional CBCT images as well as fan beam CT images used for treatment planning.
Retrospective and prospective observational study of patients undergoing advanced pelvic oncological resection for maligancy including multi visceral resection, beyond TME resection and sacrectomy/flap reconstruction/urinary reconstruction at Glasgow Royal Infirmary. Goal is to study and report outcomes for patients to characterise and understand major complications, natural history of resectional patients and identify areas for future interventional study.
The empty pelvis syndrome is an unsolved and poorly defined problem severely affecting patients that have pelvic exenteration surgery, and also the teams looking after them. It is unclear what the anatomical and pathophysiological causes of the empty pelvis syndrome are, how it can be prevented, and how its sequelae can be measured. The evidence to guide decisions around the empty pelvis syndrome is of low quality, and so there is a large amount of variation in approaches between different hospitals. This consensus study will define a core outcome set for the empty pelvis syndrome, and establish current levels of consensus on pathophysiology and mitigation of the empty pelvis syndrome through a modified-Delphi process involving both healthcare professionals and patient representatives.
In a transvaginal tru-cut biopsy, guided by ultrasound, a needle is inserted through the vaginal wall into a pelvic lesion and a few pieces of tissue are obtained for examination. This clinical trial is organized to evaluate the safety and efficacy of transvaginal tru-cut biopsy in a large group of patients with tumors in the small pelvis.
This is a feasibility study investigating the image quality of a new, high-performance cone beam CT (CBCT) used for on-couch imaging during radiotherapy treatments.
In France, according to the National Cancer Institute, it appears that treatments in radiotherapy centers for cancer will increase from 198,000 in 2015 to 239,000 in 2030: this represents 40,000 additional treatments in 15 years. A meta-analysis on radiotherapy indicated that 10 to 20% of patients had clinically significant levels of anxiety at the beginning of radiotherapy. Indeed, several factors generate this tension, above all the new or unfamiliar environment, the imposing and noisy scanner, the restraints that are difficult to bear or the nudity required for the examination. This anxiety has an impact on performance of the planning CT scan examination, an essential step for the future treatment. The radiotherapy unit of the Centre Hospitalier Departemental de Vendee has put in place resources to reduce anxiety felt during treatment sessions (music therapy, conversational hypnosis, sophrology or aromatherapy). However, nothing has been put in place to reduce the anxiety of patients in the period preceding the planning CT scan. Virtual reality software seems to be a good alternative that requires fewer human resources. The research hypothesis is that patients who have benefited from the virtual reality software will have a lower level of anxiety before the planning CT scan than patients who have not benefited from virtual reality.
Advanced pelvic cancers are uncommon, with treatment being challenging. Around 4000 patients every year need treatment in the UK. Cancers can involve multiple organs and often need radiotherapy and chemotherapy before surgery. Surgery usually requires removal of multiple pelvic organs, including muscles, bone, and skin around the anus (the perineum). This can lead to complications relating to both the empty pelvis syndrome and closure of the perineal defect. Reconstruction is challenging, with frequently occurring complications, reducing speed of recovery and quality of life. This study investigates complication frequency, quality of life and expenses following different reconstruction techniques. The investigators hope to improve patient and doctor decision-making in this area and find the best methods of reconstruction to improve outcomes. REMACS has three work packages: 1. Maintenance of a database of patients undergoing colorectal surgery at Southampton and Salisbury Hospitals, including those undergoing extra-levator abdominoperineal excision and pelvic exenteration. This includes clinical data, imaging, health resource use, and patient reported outcome measures. 2. A collaborative national prospective cohort study investigating morbidity, health resource use, longitudinal quality of life outcomes (EORTC QLQ-C30 and disease-specific modules) and quality adjusted life years. The investigators will also assess financial toxicity using the comprehensive score for financial toxicity. 3. A qualitative study using semi-structured interviews to undertake a more complex evaluation of quality of life and patient experiences in patients that have recovered from their surgeries.
Flap reconstruction is utilised increasingly for repair of skin and soft tissue defects following pelvic exenteration. Many methods have been proposed but the outcomes associated with each remain largely unknown and the choice dependant on surgeon preference and patient/ disease characteristics. This review sought to assess the preferred methods for perineal reconstruction following pelvic exenteration by retrospectively assessing the outcomes associated with each at an international, multi-centre level.