Title :
The influence of a malignant nodule on resonance frequencies of the thyroid gland
Author :
Gavriloaia, Gheorghe ; Ghemigean, Adina-Mariana ; Gavriloaia, Mariuca-Roxana
Author_Institution :
Electron. & Comput. Dept., Univ. of Pitesti, Pitesti, Romania
Abstract :
The thyroid is investigated as a resonant cavity. A number of 16 eigenfrequencies and eigenmodes are evaluated for a thyroid geometric model excited by ultrasounds. The malignant tissue was modelled by spheres with different diameters. The spatial distributions of the acoustic eigenmodes are in accordance with blood supplier positions. Blood supplier efficiency and local temperature will decrease as a result of nodules or cysts. The acoustic field eigenfrequency for the same propagation mode is bigger when thyroid has a malignant nodule. Efficiency of ultrasound diagnosis and thyroid treatment will be increased by knowing these modes and frequencies.
Keywords :
biomedical ultrasonics; diseases; haemodynamics; haemorheology; patient treatment; tumours; acoustic eigenmodes; acoustic field eigenfrequency; blood supplier efficiency; blood supplier positions; cysts; eigenmodes; malignant nodule; malignant tissue; resonant cavity; spatial distributions; thyroid gland resonance frequency; thyroid treatment; ultrasound diagnosis; Cancer; Cardiac disease; Cardiovascular diseases; Computational modeling; Glands; Medical diagnostic imaging; Resonance; Resonant frequency; Solid modeling; Ultrasonic imaging;
Conference_Titel :
MELECON 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference
Conference_Location :
Valletta
Print_ISBN :
978-1-4244-5793-9
DOI :
10.1109/MELCON.2010.5476030
