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A new signal interrogation concept, based on Synthetic Structural Imaging (SSI) physics, has been developed to guide therapies. The SSI method was previously successful in radar and sonar imaging; here it is demonstrated for acoustic scattering from penetrable biological targets. Operating at ultrasonic frequencies of several hundred kilohertz, SSI trades the higher resolution of typical B-mode ultrasound...
The authors propose stents that function as thermotherapy for cancer besides its original efficacy. Thermotherapy is the method of treating cancer by the use of heat, and it is generally well known that at the temperature of 42.5 degC or more, the survival rate of tumor tissue decreases rapidly, while normal cells can survive up to 44 degC. If we take advantage of this 1.5 degree temperature difference,...
As2S3 is playing an important role in the treatment and research for human cancer, but many limitations exist because of its form. We studied preparation method of As2S3 nanoparticles, a completely new form of medicine containing arsenic and explored their antitumor effect. As2S3 nanoparticles were prepared chemically and characterized by Transmission electron microscope and energy dispersive spectrometry...
Magnetic resonance elastography (MRE) is a method that can visualize the propagating acoustic strain waves in elastic materials under mechanical excitation. The local quantitative values of shear modulus are derived from the acquired data. The MRE could improve early detection of pathology because it is known that malignant tumors tend to be much harder than normal tissues and most benign tumors....
An approach for reconstructing the sound velocity distribution in the breast was previously proposed and verified by simulations, and the present study investigated the approach experimentally. The experimental setup comprised a 5-MHz, 128-channel linear array, a programmable digital array system, a phantom containing objects with differing physical properties, and a computer. The array system was...
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