DE29920673U1 - Automatic bone density and structure determination by determining the gradients of reference bodies and texture determination - Google Patents

Automatic bone density and structure determination by determining the gradients of reference bodies and texture determination

Info

Publication number
DE29920673U1
DE29920673U1 DE29920673U DE29920673U DE29920673U1 DE 29920673 U1 DE29920673 U1 DE 29920673U1 DE 29920673 U DE29920673 U DE 29920673U DE 29920673 U DE29920673 U DE 29920673U DE 29920673 U1 DE29920673 U1 DE 29920673U1
Authority
DE
Germany
Prior art keywords
measurement system
bone density
determining
determination
reference body
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 - Lifetime
Application number
DE29920673U
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE29920673U priority Critical patent/DE29920673U1/en
Publication of DE29920673U1 publication Critical patent/DE29920673U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/50—Clinical applications
    • A61B6/505—Clinical applications involving diagnosis of bone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/58—Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
    • A61B6/582—Calibration
    • A61B6/583—Calibration using calibration phantoms

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (6)

1. Vermessungssystem zur Bestimmung der Knochendichte, beispielsweise bei Beurteilung von Knochenstrukturen (Qualitäten) in der Kieferorthopädie mit einer Röntgenquelle (1) zur Aufnahme eines Objekts (3), wobei zur Be­ stimmung der Knochendichte mindestens ein Referenzkörper (4) vorgesehen ist, die bei der Aufnahme des Objekts (3) mit aufgenommen wird und wobei aus den Parametern des Referenzkörpers (4) eine Bestimmung der Struktur des Knochenaufbaus und/oder der Knochendichte erfolgt.1. Measuring system for determining the bone density, for example when assessing bone structures (qualities) in orthodontics with an X-ray source ( 1 ) for recording an object ( 3 ), at least one reference body ( 4 ) being provided for determining the bone density the recording of the object ( 3 ) is also recorded and the parameters of the reference body ( 4 ) are used to determine the structure of the bone structure and / or the bone density. 2. Vermessungssystem nach Anspruch 1, dadurch gekennzeichnet, daß die Referenzkörper vorzugsweise zwei Kugeln sind.2. Measurement system according to claim 1, characterized, that the reference body is preferably two balls. 3. Vermessungssystem nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Referenzkörper aus verschieden strahlendurchlässigem Material sind.3. Measurement system according to one of claims 1 or 2, characterized, that the reference body made of different radiolucent material are. 4. Vermessungssystem nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Referenzkörper auch eine innere Struktur aufweisen können.4. Measurement system according to one of claims 1 to 3, characterized, that the reference body can also have an internal structure. 5. Vermessungssystem nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die dem Vermessungssystem auch Spannung und Strom des Strahlers als Wert mit übergeben werden, um die Kalibrierung auch bei der Verschie­ bung dieser Werte erfassen zu können und die daraus resultierende Grau­ wertverschiebung mit einbeziehen zu können. 5. Measurement system according to one of claims 1 to 4, characterized, that the measuring system also voltage and current of the radiator be passed as a value to ensure calibration even when to be able to record these values and the resulting gray to be able to include changes in value.   6. Vermessungssystem nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß aus dem Vermessungssystem einer der beiden Variablen Spannung oder Strom bei festem Wert einer der beiden Varaiablen mittels Grauwertab­ stufung und Gradienten-Bildung ermittelt werden kann.6. Measurement system according to one of claims 1 to 5, characterized, that from the measurement system one of the two variables voltage or current with a fixed value of one of the two variables using gray value ab gradation and gradient formation can be determined.
DE29920673U 1999-05-31 1999-11-25 Automatic bone density and structure determination by determining the gradients of reference bodies and texture determination Expired - Lifetime DE29920673U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29920673U DE29920673U1 (en) 1999-05-31 1999-11-25 Automatic bone density and structure determination by determining the gradients of reference bodies and texture determination

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29909394 1999-05-31
DE29920673U DE29920673U1 (en) 1999-05-31 1999-11-25 Automatic bone density and structure determination by determining the gradients of reference bodies and texture determination

Publications (1)

Publication Number Publication Date
DE29920673U1 true DE29920673U1 (en) 2000-08-17

Family

ID=8074105

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19956636A Withdrawn DE19956636A1 (en) 1999-05-31 1999-11-25 Automatic bone density and structure determination, for orthodontic application, by use of reference object for determination of gradients and texture by comparison with test structure
DE29920673U Expired - Lifetime DE29920673U1 (en) 1999-05-31 1999-11-25 Automatic bone density and structure determination by determining the gradients of reference bodies and texture determination

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19956636A Withdrawn DE19956636A1 (en) 1999-05-31 1999-11-25 Automatic bone density and structure determination, for orthodontic application, by use of reference object for determination of gradients and texture by comparison with test structure

Country Status (1)

Country Link
DE (2) DE19956636A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2666413A1 (en) * 2012-05-23 2013-11-27 Stryker Trauma GmbH Bone density measurement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025194A1 (en) 2006-05-29 2007-12-06 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Inductive conductivity sensor for measuring electrical conductivity of medium, has toroidal coils, which enclose continuous opening that is subjected to medium, and several conductor sections, which are connected by through connections
GB201107385D0 (en) * 2011-05-04 2011-06-15 Materialise Nv Medical imaging calibration device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2666413A1 (en) * 2012-05-23 2013-11-27 Stryker Trauma GmbH Bone density measurement

Also Published As

Publication number Publication date
DE19956636A1 (en) 2000-10-19

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20000921

R150 Term of protection extended to 6 years

Effective date: 20030617

R157 Lapse of ip right after 6 years

Effective date: 20060601