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Ultrasound Imaging of Thermal Therapy in in Vitro Liver by M.R. Gertner; A.E. Worthington; B.C. Wilson; M.D. Sherar is a Medicine article available to read on EtoBox.

What is Ultrasound Imaging of Thermal Therapy in in Vitro Liver about?

The objective of this work was to image liver tissue heated to temperatures below the vaporization threshold as a function of time, to test the feasibility of real-time ultrasound monitoring to control lesion size during minimally invasive thermal therapy (MITT). Two experiments were devised. In one experiment, a thermal gradient was established in a rectangular volume of tissue to correlate changes in ultrasound image echogenicity (B-mode image brightness) with tissue temperature. In the other, a thermal lesion was produced in a rectangular volume of tissue by an interstitial microwave antenna, and the progression of the lesion was monitored by ultrasound. In both experiments, the echogenicity of the tissue increased slightly for tissue temperatures up to 40°C, but became lower than that of unheated tissue for temperatures above 40°C. In the second experiment, images of the lesion were compared with a photograph of the lesion taken after the experiment was complete. The final lesion was composed of two concentric regions-an inner region of heavily coagulated tissue and an outer region of less-damaged tissue. These two damaged regions indicated that increased ultrasound attenuation

Who reads Ultrasound Imaging of Thermal Therapy in in Vitro Liver?

Author

M.R. Gertner; A.E. Worthington; B.C. Wilson; M.D. Sherar

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0301-5629)

Published

1998

Language

EN

Field

Medicine (Health Sciences)