Publications by authors named "Bikramjit Chakrabarti"

Background: Cancer is a major health problem in today's world. Many patients of pelvic malignancies need treatment by radiation therapy. Post-treatment morbidity due to loss of bone health is less commonly studied.

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Purpose: This study analyzes clinical consequences and dosimetric variations after imperfect brachytherapy insertions. It examines treatment decisions after such insertions in patients having difficult anatomy, which leads to good subsequent insertions with acceptable dose volume parameters.

Material And Methods: We reviewed images of all insertions performed during last one year and sorted faulty ones out.

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Purpose: This study is intended to compare dose-volume parameters evaluated using different forward planning- optimization techniques, involving two applicator systems in intracavitary brachytherapy for cervical cancer. It looks for the best applicator-optimization combination to fulfill recommended dose-volume objectives in different high-dose-rate (HDR) fractionation schedules.

Material And Methods: We used tandem-ring and Fletcher-style tandem-ovoid applicator in same patients in two fractions of brachytherapy.

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We report a unique case of successfully performed intraluminal brachytherapy for low volume urethral mucosal recurrence of transitional cell carcinoma urinary bladder, initially treated by transurethral resection of bladder tumor, followed by radical cystectomy. Since the patient was unwilling to undergo any other operational interventions, intraluminal brachytherapy of urethra was attempted. Fluroscopy guided intraluminal HDR brachytherapy using Lumencath(®) catheter under local anesthesia, and remote afterloading system (Nucletron, an Elekta company, Elekta AB, Stockholm, Sweden) was performed.

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Purposes: Brachytherapy, either alone or in combination with external irradiation, is a useful organ-preserving approach in the treatment of primary head and neck cancers. Treatment of regional nodal drainage area is not warranted in early-stage oral cavity cancers because T1N0 oral cavity cancers have less than 20% likelihood of nodal spread. We reviewed the records of interstitial brachytherapy cases of oral cavity cancers in our brachytherapy unit to assess the clinical outcome of the patients treated.

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