A patient/therapist interactive feedback control system to regulate temperature and control pain in scanned focused ultrasound hyperthermia

Persistent Link:
http://hdl.handle.net/10150/278077
Title:
A patient/therapist interactive feedback control system to regulate temperature and control pain in scanned focused ultrasound hyperthermia
Author:
Nathanson, Scott Mitchell, 1966-
Issue Date:
1992
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
An interactive temperature and patient pain feedback controller with manual power control as a function of scan position has been developed and clinically implemented in treating cancerous tumors utilizing the University of Arizona Cancer Center's Scanned Focused Ultrasound Hyperthermia system. The temperature controller implemented uses a Bang-Bang PID controller in 12 adjacent regions. The controller is shown to be able to reduce unwanted hot spots without substantially increasing the size of cold spots in the treatment volume. The addition of patient feedback during treatments has reduced the frequency of undesirable treatment modifications such as moving the scan or lowering of ultrasound power. Patients were able to repeatedly indicate the areas of pain with a pain button during treatments allowing a computer to determine the maximum tolerable power without excessive discomfort.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Engineering, Biomedical.; Engineering, Mechanical.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College
Degree Grantor:
University of Arizona
Advisor:
Roemer, Robert B.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleA patient/therapist interactive feedback control system to regulate temperature and control pain in scanned focused ultrasound hyperthermiaen_US
dc.creatorNathanson, Scott Mitchell, 1966-en_US
dc.contributor.authorNathanson, Scott Mitchell, 1966-en_US
dc.date.issued1992en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractAn interactive temperature and patient pain feedback controller with manual power control as a function of scan position has been developed and clinically implemented in treating cancerous tumors utilizing the University of Arizona Cancer Center's Scanned Focused Ultrasound Hyperthermia system. The temperature controller implemented uses a Bang-Bang PID controller in 12 adjacent regions. The controller is shown to be able to reduce unwanted hot spots without substantially increasing the size of cold spots in the treatment volume. The addition of patient feedback during treatments has reduced the frequency of undesirable treatment modifications such as moving the scan or lowering of ultrasound power. Patients were able to repeatedly indicate the areas of pain with a pain button during treatments allowing a computer to determine the maximum tolerable power without excessive discomfort.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectEngineering, Biomedical.en_US
dc.subjectEngineering, Mechanical.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorRoemer, Robert B.en_US
dc.identifier.proquest1347581en_US
dc.identifier.bibrecord.b27478579en_US
All Items in UA Campus Repository are protected by copyright, with all rights reserved, unless otherwise indicated.