Mobile radiographic imaging system

Patent metadata

Field	Value
Publication number	US-2025040899-A1
Application number	US-202418786102-A
Country	US
Kind code	A1
Filing date	Jul 26, 2024
Priority date	Jul 31, 2023
Publication date	Feb 6, 2025
Grant date	—

Abstract

Provided is a mobile radiographic imaging system that includes: a radiation generating apparatus that emits radiation; and a control means capable of setting the radiation generating apparatus to a plurality of modes including a first mode, in which the radiation generating apparatus performs moving image imaging with an allowable radiation dose, and a second mode, in which the radiation generating apparatus performs the moving image imaging with an allowable radiation dose smaller than the allowable radiation dose in the first mode.

First claim

What is claimed is:

1 . A mobile radiographic imaging system, comprising:
a radiation generating apparatus that emits radiation; and a hardware processor capable of setting the radiation generating apparatus to one of a plurality of modes including a first mode and a second mode, the first mode being a mode in which the radiation generating apparatus performs moving image imaging with an allowable radiation dose, the second mode being a mode in which the radiation generating apparatus performs the moving image imaging with an allowable radiation dose smaller than the allowable radiation dose in the first mode.

2 . The mobile radiographic imaging system according to claim 1 , wherein
an allowable time for the radiation generating apparatus to emit the radiation is shorter in the second mode than in the first mode.

3 . The mobile radiographic imaging system according to claim 1 , wherein
in a case where the second mode is selected, the radiation generation apparatus is not allowed to emit the radiation for the predetermined time or longer.

4 . The mobile radiographic imaging system according to claim 3 , wherein
in a case where the first mode is selected, the radiation generation apparatus is allowed to emit the radiation for the predetermined time or longer.

5 . The mobile radiographic imaging system according to claim 1 , wherein
the radiation generating apparatus stops emitting the radiation based on one of the allowable radiation doses.

6 . The mobile radiographic imaging system according to claim 1 , wherein
a number of allowable frames to be imaged by the radiation generation apparatus is smaller in the second mode than in the first mode.

7 . The mobile radiographic imaging system according to claim 1 , wherein
a frame rate when the radiation generating apparatus performs the moving image imaging is lower in the second mode than in the first mode.

8 . The mobile radiographic imaging system according to claim 1 , wherein:
the radiation generating apparatus emits the radiation which is pulsed radiation, and the radiation emitted by the radiation generating apparatus has a lower pulse duty ratio in the second mode than in the first mode.

9 . The mobile radiographic imaging system according to claim 1 , wherein:
the radiation generating apparatus emits the radiation that is pulsed radiation, and the radiation emitted by the radiation generating apparatus has a shorter pulse width in the second mode than in the first mode.

10 . The mobile radiographic imaging system according to claim 1 , wherein:
the radiation generating apparatus emits the radiation that is pulsed radiation, and the radiation emitted by the radiation generating apparatus has a longer pulse interval in the second mode than in the first mode.

11 . The mobile radiographic imaging system according to claim 1 , wherein
the radiation emitted by the radiation generation apparatus has a lower intensity in the second mode than in the first mode.

12 . The mobile radiographic imaging system according to claim 1 , wherein
the radiation generating apparatus when the radiation generating apparatus emits the radiation has a smaller tube current-time product in the second mode than in the first mode.

13 . The mobile radiographic imaging system according to claim 1 , wherein
the radiation generating apparatus when the radiation generating apparatus emits the radiation has a smaller tube current of a tube in the second mode than in the first mode.

14 . The mobile radiographic imaging system according to claim 1 , wherein
the radiation generating apparatus when the radiation generating apparatus emits the radiation has a lower tube voltage of a tube in the second mode than in the first mode.

15 . The mobile radiographic imaging system according to claim 1 , wherein:
the radiation generating apparatus includes a shield, and the shield shields the radiation emitted in the second mode.

16 . The mobile radiographic imaging system according to claim 1 , wherein:
the radiation generating apparatus includes a shield, and the shield reduces intensity of the radiation emitted in the second mode.

17 . The mobile radiographic imaging system according to claim 1 , wherein:
the radiation generating apparatus includes a shield, and the shield narrows an area to be irradiated with the radiation emitted in the second mode.

18 . The mobile radiographic imaging system according to claim 1 , wherein:
the first mode is a fluoroscopy mode, and the second mode is a dynamic imaging mode.

19 . The mobile radiographic imaging system according to claim 1 , wherein
the allowable radiation doses are effective doses.

20 . The mobile radiographic imaging system according to claim 1 , wherein
the hardware processor performs control such that a radiation dose is limited to be equal to or less than the allowable radiation dose in a set imaging mode, the set imaging mode being one of the first mode and the second mode.

21 . The mobile radiographic imaging system according to claim 1 , further comprising
a display that displays a moving image imaged by the moving image imaging based on a set imaging mode, the set imaging mode being one of the first mode and the second mode, wherein in a case where the second mode is set by the hardware processor, real-time display of the moving image by the display is limited.

22 . The mobile radiographic imaging system according to claim 1 , wherein
the hardware processor has a function to limit at least a setting of the first mode.

23 . The mobile radiographic imaging system according to claim 1 , wherein
in a case where the second mode is set, the hardware processor causes the radiation generating apparatus to stop emitting the radiation when an imaging time is equal to or longer than a predetermined time.

24 . The mobile radiographic imaging system according to claim 1 , further comprising
an inputter that inputs a setting of the radiation generating apparatus to the hardware processor, wherein in a case where the second mode is set by the hardware processor, the inputter is prohibited from inputting a setting for an allowable radiation dose that exceeds an allowable radiation dose in the second mode.

Assignees

• Konica Minolta Inc

Inventors

• Ono Kojiro
• Sugihara Miyako
• Kakigi Takanori
• Murayama Takeshi

Classifications

• A61B6/4441

  the rigid structure being a C-arm or U-arm · CPC title

• A61B6/54

  Control of apparatus or devices for radiation diagnosis · CPC title

• A61B6/107

  Protection against radiation, e.g. shielding · CPC title

• A61B6/405

  Source units specially adapted to modify characteristics of the beam during the data acquisition process (A61B6/4021, A61B6/4035 take precedence) · CPC title

• A61B6/487

  involving fluoroscopy · CPC title