Positron imaging for verification of irradiation field during radiotherapy.

Aim Of Study: The present study was designed to investigate the application of positron images from photonuclear reactions to verify the location of targeted radiation in vivo.

Materials And Methods: The phantom study was conducted with distilled water, porcine muscle, porcine adipose tissue, and graphite; these subjects were irradiated separately with 50 MV photons generated by an MM50 Racetrack Microtron. The positron emission activity was measured using a Geiger counter, and the radioactive decay curves for each of the irradiated materials were then established.

Long-term results of a randomized phase III trial of TPF induction chemotherapy followed by surgery and radiation in locally advanced oral squamous cell carcinoma.

Previously, we conducted a randomized phase III trial of TPF (docetaxel, cisplatin, and 5-fluorouracil) induction chemotherapy in surgically managed locally advanced oral squamous cell carcinoma (OSCC) and found no improvement in overall survival. This study reports long-term follow-up results from our initial trial. All patients had clinical stage III or IVA locally advanced OSCC.

[Effect of "Xinjingjie mouthrinse" on prevention and treatment of radiation-induced oral mucositis].

Purpose: To investigate the effect of "Xinjingjie compound lysostaphin antibacterial collutorium" on prevention and treatment of radiation-induced oral mucositis in a prospective, randomized and double-blind clinical trial.

Methods: Sixty patients with oral cancer to be treated with radiotherapy were randomized into the experimental and control group. The experimental group (30 patients) was treated with "Xinjingjie mouthrinse" during the full course of radiotherapy, 4 times daily with 5 mL and 5 min each time.

Outcomes and xerostomia after postoperative radiotherapy for oral and oropharyngeal carcinoma.

Background: We compared outcomes and xerostomia grade after postoperative intensity-modulated radiation therapy (IMRT) and conventional radiotherapy (RT) in patients with oral and oropharyngeal carcinoma.

Methods: Eighty-eight patients with oral cavity (n = 77) and oropharyngeal (n = 11) carcinoma underwent postoperative IMRT (n = 44) or conventional RT (n = 44). Outcomes, failure patterns, volume, doses, salivary gland V30, and xerostomia grade were evaluated.

Randomized phase III trial of induction chemotherapy with docetaxel, cisplatin, and fluorouracil followed by surgery versus up-front surgery in locally advanced resectable oral squamous cell carcinoma.

Purpose: To evaluate induction chemotherapy with docetaxel, cisplatin, and fluorouracil (TPF) followed by surgery and postoperative radiotherapy versus up-front surgery and postoperative radiotherapy in patients with locally advanced resectable oral squamous cell carcinoma (OSCC).

Patients And Methods: A prospective open-label phase III trial was conducted. Eligibility criteria included untreated stage III or IVA locally advanced resectable OSCC.

Protecting the oral mucosa in patients with oral tongue squamous cell carcinoma treated postoperatively with intensity-modulated radiotherapy: a randomized study.

Objectives/hypothesis: Is the severity of acute oral mucositis in patients who receive postoperative intensity-modulated radiotherapy (PO-IMRT) for oral tongue squamous cell carcinoma (SCC) reduced by sparing the oral mucosa outside of the planning target volume (PTV)?

Study Design: Prospective, randomized trial.

Methods: Forty-eight patients with oral tongue SCC who received PO-IMRT at our institution were randomized to two groups: the oral-sparing (OR-SP) group and oral-unsparing (OR-USP) group. For the OR-SP group (n = 24), the oral mucosa outside of the PTV was spared.

Impact of salivary gland dosimetry on post-IMRT recovery of saliva output and xerostomia grade for head-and-neck cancer patients treated with or without contralateral submandibular gland sparing: a longitudinal study.

Purpose: To observe the recovery of saliva output and effect on xerostomia grade after intensity-modulated radiotherapy (IMRT) with or without contralateral submandibular gland (cSMG) sparing and to assess the impact of salivary gland dosimetry on this recovery among patients with head-and-neck cancer.

Methods And Materials: Between May 2007 and May 2008, 52 patients with head-and-neck cancer received definitive (n=5 patients) and postoperative (n=47 patients) IMRT at our institution, with at least one parotid gland spared. Of these patients, 26 patients with a low risk of recurrence in the cSMG region underwent IMRT and had their cSMGs spared (cSMG-sparing group).