JPH01147804U - - Google Patents
Info
- Publication number
- JPH01147804U JPH01147804U JP4278388U JP4278388U JPH01147804U JP H01147804 U JPH01147804 U JP H01147804U JP 4278388 U JP4278388 U JP 4278388U JP 4278388 U JP4278388 U JP 4278388U JP H01147804 U JPH01147804 U JP H01147804U
- Authority
- JP
- Japan
- Prior art keywords
- data
- projection
- acquisition unit
- projection data
- processing unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 claims description 2
- 238000003325 tomography Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000013480 data collection Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
第１図ないし第８図は、この考案の一実施例に
係るＸ線断層撮影装置の説明図であり、第１図は
その概略ブロツク図、第２図はＣＲ像を撮影する
ときのＸ線曝射の説明図、第３図はそのときの投
影データのプロフアイル、第４図は有効データ領
域を検出するさいのデータサンプリングの説明図
、第５図は有効データ領域の検出手順を示したフ
ローチヤート、第６図はＣＲ像を得るさいの画像
構成の説明図、第７図はＣＴ像を得るときの撮影
開始位置の説明図、第８図はＣＴ像を得るさいの
バツクプロジエクシヨンの説明図である。第９図
は従来装置の説明図である。
Ｓ…被検体、１１…Ｘ線管、１２…Ｘ線検出器
、１３…データ収集部、１４…第１データ処理部
、１５…マイクロコンピユータ、１６…バツフア
メモリ、１７…第２データ処理部、１８…マイク
ロコンピユータ、１９…画像構成用メモリ、２０
…画像表示部、２３…ＣＲＴ、ＸＭＡＸ…有効デ
ータ領域。
1 to 8 are explanatory diagrams of an X-ray tomography apparatus according to an embodiment of the invention, FIG. 1 is a schematic block diagram thereof, and FIG. 2 is an An explanatory diagram of exposure, Fig. 3 is a profile of the projection data at that time, Fig. 4 is an explanatory diagram of data sampling when detecting an effective data area, and Fig. 5 shows the procedure for detecting an effective data area. Flowchart, Fig. 6 is an explanatory diagram of the image configuration when obtaining a CR image, Fig. 7 is an explanatory diagram of the imaging start position when obtaining a CT image, and Fig. 8 is a back projection diagram when obtaining a CT image. FIG. FIG. 9 is an explanatory diagram of a conventional device. S... Subject, 11... X-ray tube, 12... X-ray detector, 13... Data collection section, 14... First data processing section, 15... Microcomputer, 16... Buffer memory, 17... Second data processing section, 18 ...Microcomputer, 19...Image configuration memory, 20
...Image display section, 23...CRT, XMAX...valid data area.
Claims (1)
データ（投影データ）に変換するデータ収集部と
、前記データ収集部から与えられた投影データを
バツフアメモリに格納するとともに前記投影デー
タのうち所要の投影データについて有効データ領
域を検出する第１データ処理部と、前記第１デー
タ処理部から与えられる投影データと有効データ
領域とに基づいて有効データ領域内にある投影デ
ータを画像構成用メモリに適宜にわりつける第２
データ処理部と、前記画像構成用メモリの内容を
表示する画像表示部とを備えたことを特徴とする
Ｘ線断層撮影装置。 a data acquisition unit that amplifies signals from the X-ray detector and converts them into digital data (projection data); and a data acquisition unit that stores the projection data given from the data acquisition unit in a buffer memory and processes the required projection data from the projection data. a first data processing unit that detects a valid data area for the data; and a first data processing unit that appropriately stores projection data within the valid data area in an image configuration memory based on the projection data and the valid data area provided from the first data processing unit. Part 2
An X-ray tomography apparatus comprising: a data processing section; and an image display section that displays the contents of the image configuration memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988042783U JPH0620487Y2 (en) | 1988-03-30 | 1988-03-30 | X-ray tomography system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988042783U JPH0620487Y2 (en) | 1988-03-30 | 1988-03-30 | X-ray tomography system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01147804U true JPH01147804U (en) | 1989-10-12 |
| JPH0620487Y2 JPH0620487Y2 (en) | 1994-06-01 |
Family
ID=31269190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988042783U Expired - Lifetime JPH0620487Y2 (en) | 1988-03-30 | 1988-03-30 | X-ray tomography system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0620487Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57153636A (en) * | 1981-03-17 | 1982-09-22 | Tokyo Shibaura Electric Co | X-ray tomography apparatus |
-
1988
- 1988-03-30 JP JP1988042783U patent/JPH0620487Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57153636A (en) * | 1981-03-17 | 1982-09-22 | Tokyo Shibaura Electric Co | X-ray tomography apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0620487Y2 (en) | 1994-06-01 |
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