EP0064312B1 - Röntgengenerator zur Durchführung von aus einer Folge von Aufnahmeschritten bestehenden Aufnahmeverfahren - Google Patents

Röntgengenerator zur Durchführung von aus einer Folge von Aufnahmeschritten bestehenden Aufnahmeverfahren Download PDF

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Publication number
EP0064312B1
EP0064312B1 EP82200484A EP82200484A EP0064312B1 EP 0064312 B1 EP0064312 B1 EP 0064312B1 EP 82200484 A EP82200484 A EP 82200484A EP 82200484 A EP82200484 A EP 82200484A EP 0064312 B1 EP0064312 B1 EP 0064312B1
Authority
EP
European Patent Office
Prior art keywords
memory
sub
content
sections
recording
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.)
Expired
Application number
EP82200484A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0064312A1 (de
Inventor
Klaus Gutjahr
Bernd Hermeyer
Rudolf Ochmann
Peter Stege
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Patentverwaltung GmbH
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Patentverwaltung GmbH, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Patentverwaltung GmbH
Publication of EP0064312A1 publication Critical patent/EP0064312A1/de
Application granted granted Critical
Publication of EP0064312B1 publication Critical patent/EP0064312B1/de
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/60—Circuit arrangements for obtaining a series of X-ray photographs or for X-ray cinematography
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/46—Combined control of different quantities, e.g. exposure time as well as voltage or current

Definitions

  • the invention relates to an X-ray generator for performing imaging procedures consisting of a sequence of up to n imaging steps, each with different sets of imaging parameters, with a first memory designed as a working memory, which is coupled to actuators for setting the imaging parameters, with a second, non-volatile Memories with a plurality (m) of areas, each of which is subdivided into n sub-areas for recording a set of recording parameters, with an input arrangement coupled to the two memories, via which the recording parameters can be freely set and which can be called up via predefinable areas of the second memory, and with a control device which can be influenced via the input arrangement and which controls the data transmission between the memories.
  • Such an X-ray generator is essentially known from DE-OS 2 318 367.
  • the recording procedures that can be carried out with this are of particular interest for angiographic examinations, in which the patient, who is on a step-by-step table top, is moved through the beam path in steps of a predetermined length. In each of these steps, the absorption ratios can change, and therefore it is provided in known devices of this type to change the tube voltage. In general, however, changing the tube voltage alone is not enough to achieve optimal recording results, and therefore further recording parameters have to be changed, in particular the mAs product.
  • the object of the present invention is to design an x-ray generator of the type mentioned at the outset in such a way that for each of the n steps of an acquisition method an arbitrary set of acquisition parameters comprising at least the setting of the tube voltage and the mAs product can be set on the generator such that each acquisition parameter set is individual is changeable, and that the recording parameter sets stored in different areas of the second memory for different recording methods can be called up for an recording method by actuating the input arrangement.
  • a third memory is provided, which is subdivided into n sub-areas, each of which records a set of recording parameters for a step, and one of which can be called up by actuating the input arrangement such that the control device is designed such that the content of the subarea called up as a result or as a function of the sequence of steps can be transferred to the first memory and its content can be transferred to the called area of the third memory when the recording parameters change, and that the content of the third memory can also be transferred via the input arrangement by calling up an area of the second memory can be transferred into this area by a first command and can be overwritten by the content of the area by a second command.
  • the recording parameters can be freely set and assigned to a sub-area of the third memory by appropriate actuation of the input arrangement, specifically for each sub-area of the third memory or each of the n steps of the recording process, by actuating the input arrangement so that the relevant sub-area of the third memory is called each time. After being called up, these sets of recording parameters can be transferred back to the first memory, where they determine the recording parameters when a recording is triggered and can be changed by freely setting different recording parameters.
  • the recording parameter sets stored in the third memory can be transferred via the input arrangement by calling up an area of the second memory and from there, when carrying out a recording method, first again into the third memory and from there into the first memory.
  • DE-A-2 808 288 discloses an X-ray generator for carrying out imaging methods consisting of a sequence of several imaging steps, each with different sets of imaging parameters.
  • a storage arrangement is provided which can record the recording parameters for each recording method and for each recording step.
  • a buffer is provided, into which the recording parameters for an individual recording step can be entered by means of an input arrangement.
  • These recording parameters can either be adopted in a freely programmable memory which has a storage capacity adapted to the number of recording steps or in a correction memory.
  • the freely programmable memory serves to carry out a further recording method which can be predetermined by the user.
  • the correction memory serves to correct the recording parameters of a single step of the recording methods stored in the other memories.
  • an admission procedure is interrupted at a certain admission step.
  • the corrected recording parameters are entered into the buffer and from there into the correction memory, and a correction detection memory is set which stores the respective step. If the program then reaches this step, the correction recognition memory makes the correction memory effective, the recording parameters for the recording step in question replace the recording parameters of the memory which was active until then, and the system then switches to the next recording step.
  • the problem here is that when another recording parameter is subsequently carried out According to the corresponding recording step, the recording parameters are in turn set from the correction memory, if the user has not previously deleted the correction detection memory by actuating a delete key.
  • the recording parameters of an individual recording method can at best be corrected, but not the recording parameters of all recording methods.
  • the input arrangement according to the invention could contain an input keyboard common to all three memories in a manner known per se.
  • the input arrangement consists of an input keyboard for free entry of recording parameters, a first key arrangement with n keys, by means of which one of the sub-areas of the third memory can be called up, and a second key arrangement exists with a number of keys corresponding to the number of areas (m), by means of which one of the areas of the second memory can be called up.
  • Each memory is therefore assigned its own input device: B.
  • recording parameters can be specified, transferred to the first memory and thus freely set;
  • One of the examination areas of the third memory is called up via one of the n buttons of the first button arrangement, while one of the m buttons on the second button arrangement calls up one of the areas provided in the second memory for a recording method.
  • the input arrangement comprises at least one further key, the actuation of which allows the content of the third memory to be transferred into the area of the second memory which is called up when a key of the second key arrangement is actuated. Only when the other key is pressed can an area called up by pressing a key of the second arrangement of keys take over the content of the third memory - whereby under certain circumstances Record parameter sets previously stored in this area are lost.
  • An X-ray tube 17 shines through a patient seated on the table top 16 of a patient support table 15.
  • the table top 16 can be moved in steps in the direction of the arrow.
  • the displacement of the table top is measured by a position sensor 19 and reported via the connection 22 to the control unit 60 (FIG. 2) in the generator 20.
  • the generated X-ray silhouette is recorded by a film changer 18, which triggers the radiation of the tube 17 via the connection 23 in synchronism with its film downtimes in the generator 20.
  • the generator 20 feeding the x-ray tube 17 can be operated by the control panels 27, 28 (FIG. 2) attached to a control panel 21 in accordance with the wishes of the user.
  • the first control panel 27 of the control panel 21 comprises an input member 270 e.g. in the form of a numeric keypad, display elements 271 for the respectively valid recording parameters (for the sake of clarity, only the two display elements for kV and mAs are shown in the drawing) and (thickness) correction keys 272 for correcting predetermined recording parameters.
  • This control panel is used in the conventional manner for free setting, display and correction of recording parameters, the data entered being transferred via a data and control line (bus) 26 into a read / write memory 25 serving as working memory, which is transferred via a further bus Line 26 'is coupled to the part 24 of the X-ray generator which is shown schematically and contains control, regulating and actuating elements.
  • the main memory also contains storage spaces for data which are required for controlling and monitoring the X-ray generator.
  • the main memory is referred to as the first memory.
  • non-volatile memory which is divided into a number of areas 30, 40, 50 corresponding to the number of different recording methods (three different recording methods are assumed in the exemplary embodiment).
  • Each of these areas is subdivided into a number (in the exemplary embodiment four) of sub-areas 31, 32, 33 and 34 corresponding to the number n of the steps of an exposure method (in the exemplary embodiment only two - kV and mAs, for the sake of clarity, however, other parameters could in principle also be used (for example, the recording time, the focus and the size of the correction for thick and thin patients can be saved individually in each sub-area), which each contain a complete recording data set and, if necessary, corrections.
  • a third memory 10 is also provided, which is preferably likewise non-volatile and which ver with a number of sub-areas 11, 12, 13 and 14 corresponding to the number of steps (here: four) of the recording method can be seen, which are used to store a recording parameter set.
  • the data transmission between the different memories 25, 30 ... 50, 10 is controlled by a control device 60.
  • This control device is expediently formed by a microprocessor with a read-only memory and input / output ports.
  • the data is transferred via a data bus system 68 according to one of several programs that are located in the read-only memory and are called up by control signals at the input ports.
  • buttons 1, 2, 3, 4 corresponding to the number of sub-areas or the steps of the recording process
  • a second set of buttons with one of the number of areas in the second memory here: three
  • Both key sets are attached to a second control panel 28 on the control panel 21 (Fig. 1).
  • the first key set with the keys 1, 2, 3 and 4 is connected to the control device 60 via the connection 61 and a schematically represented “changeover switch” 70.
  • the controller 60 Is actuated one of the keys of the first key set, for example, the key 1, after which receives the control means the information "button 1", the controller 60 the content of the sub 11 of the third S p egg Chers 10 in the memory 25 transfers.
  • the other keys 2, 3 and 4 of the first key set are actuated, however, the sub-areas 12, 13 and 14 are transferred to the first memory 25.
  • each sub-area 11 ... 14 is assigned to a button 1 ... 4. Since the recording parameters for a step of a recording process are stored in each of the sub-areas, the assigned key is expediently provided with a symbol which identifies this step, as shown in FIG.
  • the generator displays the content of its memory 25 on the display elements 271 of the first control panel 27 and adjusts its control and actuating elements 24 in accordance with the specified data. If, after pressing one of the keys 1, 2, 3 or 4, the input member 270 on the first control panel 27 is actuated, the bus system 26 makes a corresponding change in the content of the memory 25 and — controlled by the control device 60 — a transfer to the sub-areas 11, 12, 13 and 14 of the third memory 10 assigned to the actuated keys 1, 2, 3 and 4.
  • the sub-areas of the memory 10 corresponding to the individual step positions of the device can thus be freely programmed and used using the free setting technique of the generator changeable at will.
  • the keys 5, 6, 7 of the second key set on the second control panel 28 are coupled to the control device 60 via the connection 65. If one of the keys 5 ... 7 is actuated, the memory area 30 ... 50 assigned to it via the program of the control device 60 is called up. This assignment is again indicated by a broken line between the areas 30, 40, 50 of the second memory and the keys 5, 6, 7 of the second key set. Since the recording parameters for all the steps of a specific recording process are stored in each of these areas, the keys 5, 6, 7 are expediently labeled in accordance with this recording process, as can be seen in FIG. B. with «Femoralis», «Aortography» etc.
  • the command key 71 coupled to the control device 60 via a line 72 must first be actuated and then the key 5, 6, 7 of the second key set, in whose assigned memory area 30, 40 or 50 the content of the memory 10 is to be transferred.
  • the command key 71 is expediently arranged so that it is largely excluded that the content of one of the areas 30... 50 of the second memory is deleted by the content of the third memory if the command key 71 is actuated inadvertently.
  • working memory 25 In principle, it is possible to use a volatile memory to combine all three memories and to use a larger memory or only a portion thereof, whereby a certain number of memory locations is assigned to each of the three «memories». It is also important here that the storage locations (30, 40 or 50) can be called up via the input arrangement, in which the recording parameter sets for a whole examination procedure are stored, and that the storage locations (11 ...

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • X-Ray Techniques (AREA)
EP82200484A 1981-04-30 1982-04-23 Röntgengenerator zur Durchführung von aus einer Folge von Aufnahmeschritten bestehenden Aufnahmeverfahren Expired EP0064312B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3117153 1981-04-30
DE19813117153 DE3117153A1 (de) 1981-04-30 1981-04-30 Roentgengenerator zur durchfuehrung von aus einer folge von aufnahmeschritten bestehenden aufnahmeverfahren

Publications (2)

Publication Number Publication Date
EP0064312A1 EP0064312A1 (de) 1982-11-10
EP0064312B1 true EP0064312B1 (de) 1986-09-17

Family

ID=6131174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200484A Expired EP0064312B1 (de) 1981-04-30 1982-04-23 Röntgengenerator zur Durchführung von aus einer Folge von Aufnahmeschritten bestehenden Aufnahmeverfahren

Country Status (4)

Country Link
EP (1) EP0064312B1 (enrdf_load_stackoverflow)
JP (1) JPS57206000A (enrdf_load_stackoverflow)
CA (1) CA1186421A (enrdf_load_stackoverflow)
DE (2) DE3117153A1 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6076904U (ja) * 1983-10-31 1985-05-29 株式会社島津製作所 下肢血管ｘ線連続撮影装置
JPS60129034A (ja) * 1983-12-16 1985-07-10 横河メディカルシステム株式会社 Ｘ線断層撮像装置の操作卓
NL8304397A (nl) * 1983-12-22 1985-07-16 Philips Nv Roentgenonderzoekapparaat met beeldsubstractie.
JPH045143Y2 (enrdf_load_stackoverflow) * 1985-06-30 1992-02-14
JPS62112563A (ja) * 1985-11-12 1987-05-23 日機装株式会社 インスリン微量注入ポンプ
DE10161708A1 (de) * 2001-12-15 2003-06-18 Philips Intellectual Property Röntgeneinrichtung mit einer Speicheranordnung für Aufnahmeparameter von Röntgenaufnahmen
JPWO2003086028A1 (ja) * 2002-04-05 2005-08-18 浜松ホトニクス株式会社 Ｘ線管制御装置及びｘ線管制御方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2220444B2 (de) * 1972-04-26 1976-04-15 Koch & Sterzel Kg, 4300 Essen Roentgenapparat mit einer vorrichtung zur wahl der fuer eine roentgenuntersuchung benoetigten groessen
DE2318367A1 (de) * 1973-04-12 1974-10-31 Philips Patentverwaltung Roentgendiagnostikanlage
DE2647928A1 (de) * 1976-10-22 1978-04-27 Siemens Ag Roentgendiagnostikeinrichtung fuer roentgenologische aufnahmen
US4160906A (en) * 1977-06-23 1979-07-10 General Electric Company Anatomically coordinated user dominated programmer for diagnostic x-ray apparatus
DE2747659A1 (de) * 1977-10-24 1979-04-26 Siemens Ag Roentgendiagnostikeinrichtung fuer roentgenologische aufnahmen
DE2808288A1 (de) * 1978-02-27 1979-08-30 Siemens Ag Roentgendiagnostikeinrichtung fuer roentgenologische aufnahmen

Also Published As

Publication number Publication date
CA1186421A (en) 1985-04-30
EP0064312A1 (de) 1982-11-10
DE3117153A1 (de) 1982-11-18
DE3273285D1 (en) 1986-10-23
JPS57206000A (en) 1982-12-17
JPH028440B2 (enrdf_load_stackoverflow) 1990-02-23

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