Publications by authors named "Gehin W"
Introduction: The delineation of organs-at-risk and lymph node areas is a crucial step in radiotherapy, but it is time-consuming and associated with substantial user-dependent variability in contouring. Artificial intelligence (AI) appears to be the solution to facilitate and standardize this work. The objective of this study is to compare eight available AI software programs in terms of technical aspects and accuracy for contouring organs-at-risk and lymph node areas with current international contouring recommendations.
View Article and Find Full Text PDFReirradiation of bone metastasis: A narrative review of the literature.
Cancer Radiother
November 2024
Article Synopsis
- - Patients with bone metastasis often undergo palliative radiotherapy, with about 20% needing reirradiation to manage symptoms or control local progression of cancer lesions.
- - Around two-thirds of patients experience pain relief from bone reirradiation, but spinal cord damage presents a risk, particularly with cumulative doses over 50 Gy.
- - Effective reirradiation requires careful planning, a multidisciplinary team approach, assessing alternative treatment options, and ensuring that patients are monitored closely after the procedure.
13-year survival oligometastatic Merkel cell carcinoma: a case report.
J Med Case Rep
September 2024
Article Synopsis
- - Merkel cell carcinoma is a rare and aggressive skin cancer characterized by a high likelihood of spreading and a generally poor prognosis, with treatment options including surgery, radiation, immunotherapy, and chemotherapy.
- - A case study describes a 65-year-old woman who received local radiation therapy for an advanced Merkel cell carcinoma on her buttock, along with chemotherapy, and experienced a pancreatic metastasis as well.
- - Remarkably, after treating an isolated pancreatic recurrence with radiation, she achieved complete remission and was still alive 13 years later, suggesting that radiation therapy can be a viable treatment for advanced Merkel cell carcinomas.
Purpose: To identify dosimetric predictive factors of sensorineural hearing loss (SNHL) in children after cranial radiation therapy (RT) in a single institution using dosimetric data from the French National Registry PediaRT.
Methods And Materials: Complete audiological follow-up data were available for 44 children treated with cranial RT between 2014 and 2021 at our institution. The median age at the time of RT initiation was 9 years (range: 2-17 years).
Purpose: Brachytherapy (BT) is a validated radiation technique for treatment of early stage tumors of oral cavity and oropharynx. This study aimed to analyze the results of our institute's patients after replacing low-dose-rate (LDR) with pulse-dose-rate (PDR) brachytherapy.
Material And Methods: We retrospectively collected data from all patients treated between 2009 and 2020 for squamous cell carcinoma (floor of the mouth, tongue, and oropharynx) using adjuvant interstitial BT with or without external RT.
Purpose: To identify dosimetric predictive factors of facial nerve paralysis for patients with vestibular schwannomas (VS) treated in a single institution with Cyberknife® (CK) hypofractionated stereotactic radiotherapy (SRT).
Methods And Materials: Eighty-eight patients were treated from 2010 to 2020. Different treatment schedules were used over that period, some prescribed to the 80% isodose line (4 × 5 Gy, 3 × 7 Gy, 3 × 8 Gy and 5 × 5 Gy) and one to the 70% isodose line (3 × 7.
BACKGROUND Adenoid cystic carcinoma (ACC) is a very rare tumor with a high risk of loco-regional recurrence and potential distant metastases. Until now, only a few cases of renal metastases from ACC have been reported in the literature. CASE REPORT A 64-year-old, Caucasian, non-smoker female, 8 months after being treated by radio-chemotherapy for a squamous cell nasal cavity tumor, presented two renal lesions associated with lung and vertebral metastases.
View Article and Find Full Text PDF