Agfa-gevaert Healthcare Gmbh

Agfa Healthcare Nv

Horst Scherer

Stephan Mair

Johan J Lamotte

Robert Fasbender

Clemens Herrmann

Jörg Frankenberger

Thomas Hartmann

Werner Haug

Detlef Brautmeier

Heinz-Josef Romanski

Joerg Frankenberger

A method and to a corresponding apparatus reads out X-ray information stored in a storage phosphor plate (), the storage phosphor plate () being irradiated with stimulation light () and so being stimulated into emitting emission light which is collected by a detector () during several measuring times and being converted into corresponding emission light signals (S, R). In order to guarantee high reliability when examining sensitivity fluctuations, in particular with different types of detectors, provision is made such that reference measurements are taken by the detector () during several reference measuring times and several reference signals are thus produced, the individual reference measuring times falling respectively between the measuring times, and the reference signals being used for examining the sensitivity of the detector () to emission light.

Method and apparatus for reading out X-ray information stored in storage phosphor plate

The invention relates to a radiography system with a recording device and to a corresponding method for recording X-rays in storage phosphor layers. In order to improve a picture quality of an X-ray, a recording control is provided for controlling the recording device such that in a first phosphor layer having a first thickness, an X-ray with a first energy limit of the X-ray radiation is recorded, and in a second phosphor layer, having a second thickness which is greater than the first thickness, an X-ray with a second energy limit of the X-ray radiation is recorded, the second energy limit of the X-ray radiation being greater than the first energy limit of the X-ray radiation.

Radiography system and method for recording X-rays in phosphor layers

In order to improve the picture quality of X-rays, a read-out control is provided for controlling a read-out device such that a first storage phosphor layer, which has a first thickness d, is read out by the read-out device controlled in a first read-out mode, and a second storage phosphor layer, which has a second thickness dwhich is greater than the first thickness d, is read out by the read-out device controlled in a second read-out mode, the second read-out mode being different from the first read-out mode. The scan parameters of the read-out device set in the first read-out mode are different from the scan parameters set in the second read-out mode in at least one scan parameter. The scan parameters are, for example, the size of the pixels, a pulse duration and/or intensity and/or width of a focus range of stimulation light, integration time and/or feed time of the detector.

Read-out device and method for reading out X-rays stored in phosphor layers

A process for the collection and presentation of an X-ray image stored in a phosphor layer, includes the steps of: collecting information in an area of the phosphor layer and in an area adjacent to, and outside of, the phosphor layer; dividing the information collected into image information and edge information, taking into account a run of the information collected, whereby the image information corresponds to the information collected in the area of the phosphor layer, and the edge information corresponds to the information collected in the area adjacent to, and outside of, the phosphor layer; and presenting the image information.

Process for the collection and presentation of an X-ray image stored in a phosphor layer

A read-out device reads out X-rays stored in phosphor layers. To improve image quality, the read-out device is controlled such that an X-ray of a first body part, e.g. of a limb, stored in a phosphor layer is read out by the read-out device controlled in a first read-out mode, and an X-ray of a second, different body part, e.g. of a thorax, stored in the phosphor layer is read out by the read-out device controlled in a second read-out mode. The scan parameters of the read-out device set in the first read-out mode are different from the scan parameters set in the second read-out mode in at least one scan parameter. The scan parameters include, but are not limited to, the size of the pixels, the intensity and/or the width of a focus range of stimulation light on the phosphor layer, the sampling rate of a detector, and a speed of the phosphor layer in relative movement to the read-out device.

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Unterhaching, Germany

Horst Scherer