Abstract: A method of performing a radioembolization treatment includes injecting 402 a plurality of radioembolization particles into a bloodstream of a patient to treat a target tissue. Each radioembolization particle of the plurality of radioembolization particles includes a radioactive core and a radiopaque layer. The method also includes obtaining 404 an image of the target tissue and the radioembolization particles to determine 406 a dose of radioactivity delivered to the target tissue by the plurality of radioembolization particles. wherein the image is one of a computerized tomography (CT) image and an x-ray image.

Abstract: A method and apparatus for determining the caliper and/or the ultrasonic transit time through the thickness direction of a moving web of material using ultrasonic pulses generated by a rotatable wheel ultrasound apparatus. The apparatus includes a first liquid-filled tire and either a second liquid-filled tire forming a nip or a rotatable cylinder that supports a thin moving web of material such as a moving web of paper and forms a nip with the first liquid-filled tire. The components of ultrasonic transit time through the tires and fluid held within the tires may be resolved and separately employed to determine the separate contributions of the two tire thicknesses and the two fluid paths to the total path length that lies between two ultrasonic transducer surfaces contained within the tires in support of caliper measurements.

Abstract: Airport landing indicator apparatus designed basically for remote airports and landing fields including means responsive to wind direction and a pair of runway locators, in the form of lighted directional arrows, located at opposing ends of a runway. Wind direction determines which of the arrows will be lit for maximum safety in landing. Each of the runway locators includes a multiplicity of high intensity lamps forming an outline of a first arrow and a multiplicity of low intensity lamps contained within the confines of the high intensity lamps forming a second arrow. All lamps of a particular runway locator may be turned on by radio control from an approaching aircraft. The high intensity lamps, necessary for long distance observation, are automatically turned off by means of a photoelectric cell actuated by landing lights of the approaching aircraft to prevent temporary blindness. The apparatus may also contain a lighted specific wind direction indicator and a wind velocity indicator.