US 2026/0094233 A1Published application

X-ray imaging apparatus

AssigneeShimadzu Corporation

InventorsYuki HARADA, Fumihiro SOMA, Naohiko WAKAYAMA

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Abstract

An X-ray imaging apparatus 100 comprises an X-ray irradiation unit 1, an X-ray detection unit 2 that outputs an image signal, a collimator 3, a control unit 6, and an image generation unit 4. The control unit 6 switches the output mode of the X-ray detection unit 2 to a first mode, in which the time required for outputting the image signal is relatively long but the visibility of the generated X-ray image 40 is relatively high, when the entire X-ray irradiation range 50 is included in a first region 20a. It switches the output mode of the X-ray detection unit 2 to a second mode, in which the time required for outputting the image signal is relatively small but the visibility of the generated X-ray image 40 is relatively low, when at least a part of the X-ray irradiation range 50 is included in a second region 20b located outside the first region 20a.

Claims6

Dependent claims

An X-ray imaging apparatus, comprising:

an X-ray irradiation unit that irradiates X-rays;
an X-ray detection unit that has an opposing surface facing the X-ray irradiation unit and outputs an image signal based on the X-rays irradiated by the X-ray irradiation unit;
an irradiation range changing unit that changes a position of an irradiation range of the X-rays irradiated from the X-ray irradiation unit on the opposing surface;
an image generation unit that generates an X-ray image based on the image signal output by the X-ray detection unit;
a display unit that displays the X-ray image generated by the image generation unit;
and
a control unit,
wherein the X-ray detection unit:
has a first region, which is a predetermined region on the opposing surface, and
is capable of switching an output mode between a first mode, in which a time required for outputting the image signal in a predetermined range of the opposing surface is relatively long but a visibility of the X-ray image generated by the image generation unit is relatively high, and a second mode, in which the time required for outputting the image signal in the predetermined range of the opposing surface is relatively small but the visibility of the X-ray image generated by the image generation unit is relatively low, and
wherein the control unit:
determines, as a result of the change in the position of the X-ray irradiation range on the opposing surface by the irradiation range changing unit, whether the apparatus is in a first state where an entire X-ray irradiation range is included in the first region, or a second state where at least a part of the X-ray irradiation range is located within a second region outside the first region in the opposing surface, and
(a) if it is determined to be in the first state, switches the output mode of the X-ray detection unit to the first mode, and
(b) if it is determined to be in the second state, switches the output mode of the X-ray detection unit to the second mode.

11 more elements

An X-ray imaging apparatus, comprising:

an X-ray irradiation unit that irradiates X-rays;
an X-ray detection unit that has an opposing surface facing the X-ray irradiation unit and outputs an image signal based on the X-rays irradiated by the X-ray irradiation unit;
an irradiation range changing unit that changes a position of an irradiation range of the X-rays irradiated from the X-ray irradiation unit on the opposing surface;
an image generation unit that generates an X-ray image based on the image signal output by the X-ray detection unit;
a display unit that displays the X-ray image generated by the image generation unit;
and
a control unit,
wherein the X-ray detection unit:
has a first region, which is a predetermined region on the opposing surface, and
is capable of switching an output mode between a first mode, in which a time required for outputting the image signal in a predetermined range of the opposing surface is relatively long but a visibility of the X-ray image generated by the image generation unit is relatively high, and a second mode, in which the time required for outputting the image signal in the predetermined range of the opposing surface is relatively small but the visibility of the X-ray image generated by the image generation unit is relatively low, and
wherein the control unit:
determines, as a result of the change in the position of the X-ray irradiation range on the opposing surface by the irradiation range changing unit, whether the apparatus is in a first state where an entire X-ray irradiation range is included in the first region, or a second state where at least a part of the X-ray irradiation range is located within a second region outside the first region in the opposing surface, and
if it is determined to be in the second state, deforms the X-ray irradiation range to maintain the first state and sets the output mode of the image signal in the X-ray detection unit to the first mode.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/328,885Filed 15 Sep 2025
Priority: JP 2024-16889927 Sep 2024
Published: 2 Apr 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G06T 3/40
Geometric image transformations in the plane of the image: scaling of whole images or parts thereof, e.g. expanding or contracting
A61B 6/06
Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment: diaphragms
A61B 6/4233
Characterised by using a particular type of detector: using matrix detectors
A61B 6/461
Arrangements for interfacing with the operator or the patient: displaying means of special interest

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