Wisconsin Alumni Research Foundation

Technology

Precision Densitometer for Radiosensitive Film

Radiosensitive films are used to measure radiation dose, for example, to calibrate equipment prior to cancer treatment. They provide high spatial resolution and are especially useful in advanced syste...
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Benjamin Rosen, Keith Kunugi, Frank Grenzow | P120265US01

Technology

Rapid Three-Dimensional Elasticity Imaging

Elastography is a type of imaging technique that reveals the stiffness of tissues. It commonly is used to detect tumors and other abnormalities that cause changes in local tissue stiffness. Measuremen...
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Tomy Varghese, Atul Ingle | P130117US01

Technology

Degrading Tumors with Microwave Heat Probes

While primary liver cancer remains one of the most pervasive solid malignancies worldwide—afflicting a million new patients annually—more than 70 percent of cases are ineligible for surgical remov...
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Christopher Brace, Jason Chiang | P120091US01

Technology

Radiation Therapy Volume Phantom Using Film

Recent applications of radiation therapy involve complex intensity modulated radiation therapy (IMRT) protocols. However, current methods for verifying radiation dose delivery are cumbersome and expen...
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Bhudatt Paliwal, Wolfgang Tome, Susan Richardson | P02028US

Technology

Radio Frequency Ablation System Using Multiple Electrodes

Radio frequency (RF) ablation is an important method of treating non-resectable primary and metastatic liver tumors. The technique uses an electric current to destroy tumor cells with heat, resulting ...
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Fred Lee, Dieter Haemmerich, John Webster, Andrew Wright, Chris Johnson, David Mahvi | P01339US

Technology

Fan-Beam Microwave Horn for Improved Organ Resection

Liver cancer is the fifth most common cancer in the world and is frequently fatal.  Surgical resection currently is the preferred treatment for liver cancer.  During the time-consuming treat...
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David Mahvi, Mark Converse, Punit Prakash, John Webster | P07328US

Technology

Electrode Array for Radiofrequency Tissue Ablation

The liver is a common site for both primary and metastasizing cancer. Surgical resection, the preferred treatment for liver cancer, is a time consuming procedure during which the surgeon must cut thro...
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Dieter Haemmerich, David Mahvi, John Webster, David Schutt | P03367US

Technology

Floating Sleeve Microwave Antenna for Tumor Ablation

In microwave ablation, a coaxial microwave antenna is inserted into tissue in or near a tumor to deliver microwave energy to the region and remove the tumor. The specific absorption rate (SAR) pattern...
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Deshan Yang, John Bertram, Mark Converse, John Webster, David Mahvi | P05190US

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