Publications by authors named "Zeyi Dai"
Article Synopsis
- A TOPAS-based optimization program has been created to accurately focus very-high-energy electron (VHEE) beams on deep-seated targets by adjusting magnetic gradients and the arrangement of quadrupole magnets.
- The program uses three quadrupole magnets to achieve a maximum dose position deeper than 17 cm while keeping entrance and exit doses within 25% and limiting lateral size to 1 cm at the highest dose location.
- It also combines two VHEE beams to enhance dose distribution across a target depth of 12-17 cm, achieving high dose flatness and may be useful for advanced treatment plans in radiation therapy.
Normal tissue complication probability (NTCP) models for radiation pneumonitis (RP) in lung cancer patients with stereotactic body radiation therapy (SBRT), which based on dosimetric data from treatment planning, are limited to patients who have already received radiation therapy (RT). This study aims to identify a novel predictive factor for lung dose distribution and RP probability before devising actionable SBRT plans for lung cancer patients. A comprehensive correlation analysis was performed on the clinical and dose parameters of lung cancer patients who underwent SBRT.
View Article and Find Full Text PDFObjective: To determine the diagnostic and therapeutic value of contrast-enhanced ultrasound-guided endoscopic retrograde appendicitis treatment (ERAT) in patients with uncomplicated appendicitis.
Methods: A retrospective analysis was performed on clinical and ultrasound data collected from 105 pediatric patients with uncomplicated appendicitis between January 2020 and December 2023. The ultrasound findings before and after treatment, as well as postoperative follow-up and recurrence rates, were summarized and analyzed.
Purpose: To explore the applicability of the Tei index combined with lung ultrasound score (LUS) in the evaluation of the lung condition and the right ventricular function of patients with neonatal pulmonary hypertension (PH).
Methods: Thirty healthy neonates and 75 neonates with PH were included. Two-dimensional, M-mode, and double Doppler ultrasound were used to detect RVFAC, TAPSE, TAPSV, and double Doppler Tei index (DD-Tei index).