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)
PURPOSE To report the outcome and toxicities of radical external beam radiotherapy (EBRT) and template-based high-dose-rate interstitial brachytherapy (ISBT) in patients diagnosed with cervical cancer undergoing inadvertent surgery, vault cancers, and vaginal cancers at our institution. METHODS AND MATERIALS Between January 2000 and December 2008, 113(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)
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)
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 To evaluate the inter-assay variability of six commercially available prostate specific antigen (PSA) assays, its clinical impact in prostate cancer (PCa) and comparison of automated versus manual assays. PATIENTS AND METHODS Sera from 495 patients (425 with PCa and 70 men with Benign Prostatic Hyperplasia (BPH), were measured with six different(More)
PURPOSE The purpose of this study was to assess feasibility, clinical outcomes, and toxicity in patients with bladder cancer treated with adaptive, image guided radiation therapy (IGRT) for bladder preservation as a part of trimodality treatment. The role of dose escalation was also studied. METHODS AND MATERIALS Forty-four patients with localized bladder(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)
BACKGROUND The side effects of various treatments for prostate cancer have a measurable impact on the general as well as disease-related quality of life, which is of pivotal concern as an outcome measure. AIM Translation and pilot testing of the European Organization for Research and Treatment of Cancer (EORTC) prostate cancer-specific module (PR-25) into(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)