PURPOSE To demonstrate the feasibility of transperineal polyethylene glycol (PEG) hydrogel insertion into anterior perirectal fat for reducing rectal radiation dose in patients with suboptimal rectal dosimetry after permanent iodine-125 prostate brachytherapy. METHODS AND MATERIALS Five patients with suboptimal rectal dosimetry after iodine-125 seed brachytherapy implant underwent a single tr...

Purpose: In the current study, using different radiobiological models, tumor control probability (TCP) and normal tissue complication probability (NTCP) of radiotherapy plans were calculated for three-dimensional conformal radiation therapy (3D-CRT) and intensity modulated radiation therapy (IMRT) of prostate cancer.Methods and Materials: 10 prostate plans were randomly selected among patients ...

A 72-year-old patient was referred to our department to carry out an 18F-Choline PET–CT due to biochemical PSA failure from prostate cancer. The patient’s prostate cancer history started 5 years ago when he was diagnosed of a Gleason 3 + 4 tumor and treated with external radiotherapy. Three years later he presented biochemical failure and prostate tumor recurrence. Transrectal biopsy confirmed ...

BACKGROUND We report a case of synchronous rectal and prostate cancer treated successfully with simultaneous da Vinci robotic-assisted low anterior resection of the rectum and robotic-assisted laparoscopic radical prostatectomy to address both cancers. CASE PRESENTATION Recently, minimally invasive surgical techniques using da Vinci robot® system (Intuitive Surgical, Sunnyvale, USA) were intr...

The aim of this study was to compare IMRT optimization in the CMS XiO radiotherapy treatment planning system, with and without segment weight optimization. Twenty-one prostate cancer patients were selected for this study. All patients were initially planned with step-and-shoot IMRT (S-IMRT). A new plan was then created for each patient by applying the segment weight optimization tool (SWO-IMRT)...

Introduction Prostate biopsy is commonly performed using a transrectal ultrasound probe through or transperineal approach. However, this not possible for patients without rectum. Case presentation A 75‐year‐old male was referred to our hospital because of an elevated prostate‐specific antigen and suspicious prostate lesion (PIRADS 5) in the left peripheral zone. The patient had previously under...

OBJECTIVE To determine the association between exposure to radiotherapy for the treatment of prostate cancer and subsequent second malignancies (second primary cancers). DESIGN Systematic review and meta-analysis of observational studies. DATA SOURCES Medline and Embase up to 6 April 2015 with no restrictions on year or language. STUDY SELECTION Comparative studies assessing the risk of s...

background: for the purpose of individual clinical target volume assessment in radiotherapy of prostate cancer, mrsi was used as a molecular imaging modality with mri and ct images. materials and methods: the images of 20 prostate cancer patients were used in this study. the mr and mrsi images were registered with ct ones using non-rigid registration technique. the ct based planning (bp), ct/mr...

BACKGROUND The relationship between radiation exposure for treatment of cancer and occurrence of a second primary cancer at the irradiated site is well known. This phenomenon is however rare in prostate. CASE PRESENTATION A 75-year-old farmer was treated for rectal cancer with preoperative 45 Gy of radiotherapy and abdominoperineal resection. Four years later he developed symptoms of bladder ...