General Electric Company

Ge Precision Healthcare LLC

James Zhengshe Liu

Kenneth Scott Kump

Donald Fayette Langler

Scott William Petrick

Paul Richard Granfors

Habib Vafi

Ping Xue

Chuande Liu

Gary McBroom

Richard Larry Anderton

Jon Charles Omernick

Brian John Kost

Gireesha Chinthamani Rao

Rowland F Saunders

John Robert Lamberty

Brian James Grekowicz

Roy Allan Schley

Feng Gao

Bela Janos Kiraly

Douglas Albagli

William Andrew Hennessy

Kadri Nizar Jabri

Biju Jacob

Nicholas Ryan Konkle

Todd R Brown

Olgun Kukrer

Jingyi Liang

Fengchao Zhang

Naveen S Chandra

Luke Gerard Beno

Gopal Biligeri Avinash

Ching-Yeu Wei

John Michael Sabol

Chen Zhang

David Ellis Barker

Clifford Bueno

Clarence Lavere Gordon, Iii

Aaron Judy Couture

Naveen Stephan Chandra

Michael John Utschig

Richard Gordon Cronce

Manfred David Boehm

James A Blake

Jan D Bruening

Jason Robert Ertel

Alan Dean Blomeyer

Rajeev Ramankutty Marar

Xianfeng Ni

German Guillermo Vera

Huayi Wang

Xiaosong Liu

Tiantian Zhang

Emad Abu Tabanjeh

Shijia Zhang

Zhimin Sun

Jon T Lea

Timothy Skuster

Russell Dibb

Tan Liu

Craig Dennis

Kiran Shankaranarayana

Karla Angelica Arista

Feng (Frank) Gao

Gilbert Wu

Meghan Fox

Rajendra Shirish Jadhav

Lance Gregory

Sung Kwan Pyun

Alexander Meyer

Frank Gao

Bamidele H Ali

Christopher Welsh

Longjiang Yu

Francisco Ruiz Gomez

HongChang Ma

Joh T Lea

Todd Brown

Various methods and systems are provided for medical imaging systems. In one example, an imaging system comprises: a C-shaped gantry; an x-ray tube coupled to a first end of the C-shaped gantry; an x-ray detector coupled to a second end of the C-shaped gantry, opposite to the x-ray tube; and a controller with computer readable instructions stored on non-transitory memory that when executed, cause the controller to: identify a reference image; determine a target electrical current based on the reference image; determine a corrected electrical current based on the target electrical current; and transition an electrical current provided to the x-ray tube to the target electrical current by commanding the electrical current to the corrected electrical current while maintaining a constant voltage provided to the x-ray tube.

Methods and systems for x-ray imaging

The present disclosure relates to systems and methods for visualizing a guidewire in a roadmap image. In accordance with certain embodiments, a method includes generating a background mask as a function of at least one background image, wherein the at least one background image includes a blood vessel of interest, generating a contrast mask as a function of at least one contrast image, wherein the at least one contrast image includes a contrast within the blood vessel of interest, receiving a guidewire image, wherein the guidewire image includes a guidewire within the blood vessel of interest, generating a roadmap image as a function of the background mask, contrast mask, and guidewire image, wherein the roadmap image includes the blood vessel of interest, and the guidewire, and outputting the roadmap image to a display.

System and method for carbon dioxide angiographic roadmap imaging

The present disclosure relates to locally enhancing medical images. In accordance with certain embodiments, a method includes determining a boundary of a region of interest in a displayed medical image, overlaying the boundary on the displayed medical image, adjusting a position of a collimator of a medical imaging system based on the determined boundary, enhancing image quality of the region of interest, and displaying the enhanced region of interest within the boundary.

Local enhancement for a medical image

A system for imaging an object includes an X-ray source operative to transmit X-rays through the object and a detector to receive the X-ray energy of the X-rays after passing through the object and to generate corresponding object X-ray intensity. The system also includes a controller to measure a detector entrance dose with no object being placed on the X-ray beam path and determine a relationship between an X-ray tube electrical parameter and the detector entrance dose. The controller further determines a relationship between the X-ray tube electrical parameter, the detector entrance dose and a detector average pixel intensity and obtains a normalized air map as a function of the X-ray tube electrical parameter based on calibration image data. The controller also generates an air map based on the normalized air map, the detector entrance dose and the detector average pixel intensity and reconstructs an image of the object based on the air map and the measured object X-ray intensity.

C-arm imaging system and method

The present approaches relate to the fabrication of non-rectangular (e.g., non-square) light imager panels having comparable active areas to rectangular light imager panels but manufactured using fewer c-Si wafers. Such light imager panels may be generally squircle shaped (e.g., a square or rectangle with one or more rounded corners and may be manufactured using conventional crystalline silicon (c-Si) wafers, such as 8&#x2033; wafers.

Tiled radiation detector

An imager panel for an x-ray detector for obtaining x-ray images of an object is provided that includes a first portion disposed at the center of the hybrid imager panel that can produce images of a first resolution and a second portion disposed at least partially around the first portion that is capable of producing images of a second resolution. The hybrid imager panel provides a hybrid detector that can be selectively operated to obtain images of varying resolutions corresponding to the first resolution from the first portion, the second resolution from the second portion or a combination thereof.

Hybrid X-ray detector structure

Methods and systems are provided for controlling an x-ray imaging system. In one embodiment, a method for an x-ray imaging system, includes acquiring, with the x-ray imaging system, a plurality of images as an x-ray tube current of the x-ray imaging system is ramping from a predefined x-ray tube current to an updated x-ray tube current, the updated x-ray tube current determined based on an estimated patient thickness estimated from a prior image acquired with the x-ray imaging system while the x-ray tube current is at the predefined x-ray tube current, combining the plurality of images into a final image, and outputting the final image for display via a display device.

Systems and method for x-ray imaging

Methods and systems are provided for generating regional digital subtraction angiography (DSA) images and roadmap images with landmarks. In one embodiment, a method comprises generating a mask from a set of mask images of an anatomy of a subject, and generating a masked image by applying the mask to acquired image data of the anatomy of the subject, including weighting the mask differently inside a region of interest (ROI) of the image than outside the ROI, the weighting inside ROI independent of the weighting outside the ROI. In this way, a user may be able to adjust a relative magnitude of subtraction inside and outside the ROI, and thus be able to visualize both vasculature and landmarks within the same image frame.

Systems and methods for generating subtracted images

A flat panel detector is provided having a circular active area. The flat panel detector is built using complementary metal-oxide-semiconductor (CMOS) tiles. In one implementation, the flat panel detector having a circular active area can be used as a replacement for a conventional image intensifier, including an image intensifier used in a fluoroscopy system.

Radiation detector for use as an image intensifier

An X-ray imaging system including an X-ray source, an X-ray collimator, a real-time controllable 3D X-ray attenuator, a digital X-ray detector, and a system controller coupled to the X-ray radiation source, the collimator, the real-time controllable 3D X-ray attenuator, and the digital X-ray detector for controlling the real-time controllable 3D X-ray attenuator to reduce X-ray radiation dose and improve image quality. The real-time controllable 3D X-ray attenuator includes a top panel, a bottom panel, at least one sidewall joining the top panel to the bottom panel, an open area between the top panel, bottom panel, and at least one 2D pixel array coupled to at least one of the top panel and the bottom panel, the at least one 2D pixel array having a plurality of pixels of thin film electric coils and switching thin film field-effect transistors, wherein the open area is at least partially filled with a mixture of ferromagnetic material and medium X-ray attenuation material.

X-ray imaging system and method with a real-time controllable 3D X-ray attenuator

An X-ray imaging system including an X-ray source, a motorless real-time controllable 3D X-ray collimator, a digital X-ray detector, and a system controller coupled to the X-ray radiation source, the motorless real-time controllable 3D X-ray collimator, and the digital X-ray detector for controlling the motorless real-time 3D X-ray collimator to reduce X-ray radiation dose and improve image quality. The motorless real-time controllable 3D X-ray collimator includes a top panel, a bottom panel, at least one sidewall joining the top panel to the bottom panel, an open area between the top panel, bottom panel, and at least one 2D pixel array coupled to at least one of the top panel and the bottom panel, the at least one 2D pixel array having a plurality of pixels of thin film electric coils and switching thin film field-effect transistors, wherein the open area is at least partially filled with a mixture of ferromagnetic material and high X-ray attenuation material.

X-ray imaging system with a motorless real-time controllable collimator that can produce arbitrarily shaped X-ray beams

An x-ray image detector includes a light image sensor having a depth, a front side comprising a sensing surface, and a back side. The x-ray image detector further includes a substrate plate on the back side and surrounding the depth of the light image sensor such that the substrate plate forms a lip around the light image sensor. The lip is level with the front side of the light image sensor. The x-ray image detector further includes a scintillator over the sensing surface of the light image sensor and at least a portion of the lip.

X-ray detector with directly applied scintillator

Fabrication and use of an X-ray detector scan interface having separate enable and reset lines for each line (e.g., row) of pixels is described. In certain implementations, the respective enable and reset lines are connected such that activation of an enable line for a given line of pixels is concurrent with activation of a reset line for a different (e.g., preceding) row of pixels. In this manner, readout of one row of pixels is performed in conjunction with resetting the row of pixels readout in the preceding operation. In another technical implementation, a non-rectangular detector is divided into quadrants, with alternating quadrants configured for scan module or data module operations such that no quadrant has overlapping scan and data interconnections at the connection finger regions.

Active pixel radiation detector array and use thereof

The present approach relates to the fabrication of radiation detectors. In certain embodiments, additive manufacture techniques, such as 3D metallic printing techniques are employed to fabricate one or more parts of a detector. In an example of one such printing embodiment, amorphous silicon may be initially disposed onto a substrate and a laser may be employed to melt some or all of the amorphous silicon so as to form crystalline silicon circuitry of a light imager panel. Such printing techniques may also be employed to fabricate other aspects of a radiation detector, such as a scintillator layer.

Radiation detector fabrication

A computer-implemented method for reducing image artifacts in X-ray image data includes dividing pixels of X-ray image data into a plurality of pixel value regions based on a pixel value of each pixel, wherein each pixel value region has a different range of pixel values. The method also includes generating calibrated X-ray image data for each pixel value region, wherein the respective calibrated X-ray image data for each pixel value region is generated using a different dose of radiation. Further, the method includes calculating a gain slope for each pixel value region based on the calibrated X-ray image data, and calculating a pixel gain correction for the pixels of the X-ray image data based on at least one of the calculated gain slopes.

System and method for correcting for image artifacts in X-ray image data

Growing community of inventors

Glenview, IL, United States of America

James Zhengshe Liu