Essays about: "A-mode ultrasound"

Found 2 essays containing the words A-mode ultrasound.

1. 1. Simulation and Analysis of Ultrasonic Wave Propagation in Pre-stressed Screws

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Erik Andrén; [2019]
   Keywords : ;

   Abstract : The use of ultrasound to measure preload in screws and bolts has been studied quite frequently the last decades. The technique is based on establishing a relationship between preload and change in time of flight (TOF) for an ultrasonic pulse propagating back and forth through a screw. READ MORE

3. 2. Prototype Development of an A-Mode Ultrasound Based Intrafraction Motion Management System

   University essay from KTH/Skolan för teknik och hälsa (STH)

   Author : Abebe Hailu; Fredrik Lundqvist; [2013]
   Keywords : Intrafraction motion management; A-mode ultrasound; stereotactic body radiation therapy; ultrasonic distance measurement; embedded system;

   Abstract : Owing to the steep dose fall-off curves of high precision and accuracy radiation therapy (RT) modalities such as stereotactic body RT (SBRT), treatment plans with extraordinarily small margins to organs at risk (OARs), such as the spinal cord, has been made possible. With this development, patient movements during treatment, i.e. READ MORE