Nuclear Medicine & Radiation Therapy

Yupa Sumitsawan

Publications

• Research Article
  Visual Functions in Locally Advanced Nasopharyngeal Carcinoma Patients after External Beam Radiation
  Author(s): Imjai Chitapanarux, Janejit Choovuthayakorn, Yupa Sumitsawan and Vicharn LorvidhayaImjai Chitapanarux, Janejit Choovuthayakorn, Yupa Sumitsawan and Vicharn Lorvidhaya
  
  Purpose: To evaluate the effects of radiation to the anterior visual pathway in locally advanced nasopharyngeal carcinoma (NPC) patients after low energy photon external beam radiation. Design: A cross-sectional, observational case series. Methods: Fifty- one patients treated with the same radiotherapy were assessed in visual acuity (VA), color vision, visual field (VF), and contrast sensitivity. The patients with post radiation interval of ≤ 3 years were defined as group 1, of > 3 years as group 2, and healthy volunteers as control group 3. The visual functions were analyzed between the three groups. Results: One patient in group 1 developed radiation-induced optic neuropathy (RION) with decreased VA, color vision defect, decreased contrast sensitivity, and VF defect. No RION was detected in group 2. There was no statistical significance in .. Read More»
  DOI: 10.4172/2155-9619.1000126

  Abstract PDF