Shyamkishore Shrivastava

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BACKGROUND AND PURPOSE This study assessed the potential of tomotherapy based Image Guided Radiotherapy (IGRT) to increase the accuracy of bladder irradiation using a 'plan of the day' adaptive radiotherapy (ART) technique. MATERIALS AND METHODS Ten patients with muscle invasive bladder cancer underwent bladder preservation with trimodality therapy in an(More)
OBJECTIVE The objectives are to report the dosimetric analysis, preliminary clinical outcome, and comparison with published data of 3-dimensional magnetic resonance-based high dose rate brachytherapy (BT) in cervical cancer. MATERIALS AND METHODS The data set of 24 patients with cervical cancer treated with high dose-rate brachytherapy applications was(More)
BACKGROUND Sparse data from India are available regarding the outcome of prostate cancer treatment. We report our experience in treating prostate cancer with radiotherapy (RT). MATERIALS AND METHODS This study included 159 men with locally advanced cancer treated with RT with or without hormone therapy between 1984 and 2004. The median RT dose was 70 Gy(More)
PURPOSE To perform a systematic analysis of clinical data of presentation, treatment, outcome, toxicity, survival and other associated prognostic factors of the patients of anal canal who received treatment at our hospital. METHODS AND MATERIALS The medical records of 257 patients treated with radiotherapy with or without chemotherapy from the year 1985(More)
PURPOSE Trans-abdominal ultrasonography (US) is capable of determining size, shape, thickness, and diameter of uterus, cervix and disease at cervix or parametria. To assess the potential value of US for image-guided cervical cancer brachytherapy, we compared US-findings relevant for brachytherapy to the corresponding findings obtained from MR imaging. (More)
Brachytherapy can play a very important role in the definitive cure by radiation therapy in India. However, except for in a handful of centres, the majority of hospitals use it only for intracavitary treatment. The most probable reasons for such are the lack of logistical resources in terms of trained personal and supporting staff, rather than lack of(More)
PURPOSE A study was performed to assess dosimetric characteristics of volumetric modulated arcs (RapidArc, RA) and fixed field intensity modulated therapy (IMRT) for Whole Abdomen Radiotherapy (WAR) after ovarian cancer. METHODS AND MATERIALS Plans for IMRT and RA were optimised for 5 patients prescribing 25 Gy to the whole abdomen (PTV_WAR) and 45 Gy to(More)
PURPOSE To assess the feasibility of reirradiation with image-based high-dose-rate brachytherapy in previously irradiated patients with recurrent carcinoma of uterine cervix. METHODS AND MATERIALS Thirty previously irradiated patients diagnosed with central recurrence were treated with reirradiation. Martinez Universal Perineal Implant Template was used(More)
INTRODUCTION AND PURPOSE In gall bladder cancers, even after curative surgery, survivals are dismal and loco-regional failure accounts for 40-86%. Although these are considered radio-resistant, adjuvant radiation, with or without chemotherapy, has been tried to improve loco-regional control and overall survival rates. With an aim to evaluate the natural(More)
OBJECTIVES To compare volumes and dose volume histogram (DVH) parameters for bone marrow contours using 2 methods on computed tomography (CT) and correlation with grade 2 or higher hematological toxicity (HT) in patients with cervical cancer treated with non-bone marrow-sparing intensity-modulated radiotherapy (IMRT) with concurrent cisplatin. MATERIALS(More)