Canon Medical Systems has been granted a patent for a magnetic resonance imaging apparatus that collects plural echo signals and data on parallel slices using a unique pulse sequence. The apparatus sets different slice thicknesses for excitation and refocusing pulses to improve imaging quality. GlobalData’s report on Canon Medical Systems gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Canon Medical Systems, was a key innovation area identified from patents. Canon Medical Systems's grant share as of February 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.

Magnetic resonance imaging apparatus with improved data collection efficiency

Source: United States Patent and Trademark Office (USPTO). Credit: Canon Medical Systems Corp

A magnetic resonance imaging apparatus has been granted a patent (Publication Number: US11927655B2) for its innovative design and functionality. The apparatus includes processing circuitry that is configured to set a pulse sequence to collect plural echo signals by applying an excitation pulse and consecutively applying a plurality of refocusing pulses subsequently to the excitation pulse. This allows for the collection of data on plural slices that are parallel to each other by executing the pulse sequence more than once, with a unique feature where the slice thickness for each of the plurality of refocusing pulses becomes larger than a slice thickness for the excitation pulse. Additionally, the data on the plural slices is collected by executing the pulse sequence without consecutively collecting data on adjacent slices, enhancing the imaging process.

Furthermore, the processing circuitry of the magnetic resonance imaging apparatus is configured to divide the plural slices into groups, ensuring that adjacent slices are included in different groups. The data on slices included in each group is then collected in order, group by group, by selecting a slice every two or more slices in the direction the slices are sequenced. This innovative approach allows for improved imaging results and efficiency in data collection. Additionally, the apparatus is designed to adjust the slice thickness of each refocusing pulse based on various factors such as the intensity of the gradient magnetic field, the level of magnetic field inhomogeneity, and the imaging condition, ensuring optimal image quality. The apparatus also has the capability to generate images with specific characteristics, such as decreased luminance in cerebrospinal fluid in a T1-weighted image and increased luminance in cerebrospinal fluid in a T2-weighted image, showcasing its versatility and adaptability in different imaging scenarios.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.