Active clinical trials for "Prostatic Neoplasms"

The main purpose of this study is to determine the accuracy and feasibility (possibility) of Aixplorer® ShearWave Elastography (SWE™) Ultrasound System (made by SuperSonic Imagine, Inc.) for detecting prostate cancer in men undergoing radical prostatectomy.

There is great need for improved preoperative imaging in men with high-risk prostate cancer. Investigators propose to develop and validate an optimized simultaneous PET/MRI protocol for local, regional and whole body preoperative staging in a single imaging session using the amino acid PET tracer, F-18 fluciclovine. Despite advances in the diagnosis and treatment of prostate cancer, the preoperative staging of men with prostate carcinoma (PCa) is currently problematic. Conventional imaging is falsely negative for regional lymph node metastases in a substantial fraction of men. In particular, approximately 35% of men with high-risk prostate cancer will have biochemical recurrence even after optimal surgical resection. A major benefit of simultaneous acquisition of a multiparametric prostate MRI (mpMRI) and F-18 fluciclovine PET includes having the patient undergo a single imaging study which provides both anatomic and molecular characterization of the tumor, including metastases which would potentially be missed by conventional anatomic imaging and size criteria. Additionally, simultaneous acquisition will improve co-registration of the PET and MR data which is valuable for small lesions and in anatomically complex regions. Although the use of fluciclovine in the characterization of the primary PCa remains to be established, the anatomic detail provided by conventional mpMRI will complement the detection of small volume metastatic disease by fluciclovine PET. Additionally, the use of hybrid PET/MRI technology allows for the assessment of dynamic tracer uptake and washout during the whole body and regional PET/MRI scan, which may demonstrate the ability to increase detection of the primary PCa on fluciclovine PET. If F-18 fluciclovine PET/MRI can reliably and accurately detect nodal metastases in high-risk prostate cancer patients, surgeons may use this new technology to develop new treatment algorithms for the optimal management of these patients.

The purpose of this study is to assess for changes in a patient's overall energy level and well-being (quality of life) after 8 weeks of dietary intervention.

The purpose of this study is to determine the impact of an absorbable urethrovesical sling on the post-operative return of urinary continence after robot-assisted radical prostatectomy.

The purpose of this study is to determine whether positron emission tomography / computed tomography (PET/CT) using fluorine-18 fluorocholine as an imaging agent can characterize regional responses to anti-androgen therapies in a manner that in the future aid in the customized planning of treatments for patients with androgen-insensitive prostate cancer.

hypothesis: the shorter half-life of Pd-103 versus I-125, will increase the rate of tumor eradication. A total of 660 patients with AJC clinical stage T1c-T2a prostatic carcinoma (Gleason grade 7 to 9 and/or PSA 10-20 ng/ml) will be randomized to implantation with I-125 (144 Gy) versus Pd-103 (124 Gy).

We seek to develop an advanced imaging approach to identifying and localizing prostate cancer. We believe that high field MRI (magnetic resonance imaging) has the potential to do this and we will endeavor to prove this by having patients with prostate cancer pre-operatively undergo a technique called magnetic resonance spectroscopy. After surgery, the microscopic locations of cancer will be compared with the pre-operative images to assess how well the imaging technique succeeds.

Helical tomotherapy is being used to treat the prostate gland, local rates of spread and regional lymph nodes whilst sparing gross structures. The radiation to the gross disease in the prostate is hypofractionated and dose escalated. Magnetic resonance spectroscopic imaging (MRSI) is incorporated into pre- and post-treatment evaluation.

When we acquired MR images of the prostate gland using a coil (receiver antenna) inside the rectum, we can see areas with tumour in the prostate gland, and well as details of the anatomy. The coil inside the rectum changes the shape of the prostate gland. In order to use this images to help target radiation therapy to the tumour better, we need to deform the images to the original shape of the prostate gland without the coil. In this study, we will develop a way to deform the images accurately.

RATIONALE: New imaging procedures, such as PET scan, may improve the ability to detect new or recurrent prostate cancer.