DE102004044433A1 - Bone displaying method for diagnosis of malicious tumor, involves creating data record of bones by magnetic resonance examination, and segmenting record of bones, where bones are marked in record by user, before segmentation - Google Patents
Bone displaying method for diagnosis of malicious tumor, involves creating data record of bones by magnetic resonance examination, and segmenting record of bones, where bones are marked in record by user, before segmentation Download PDFInfo
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- DE102004044433A1 DE102004044433A1 DE102004044433A DE102004044433A DE102004044433A1 DE 102004044433 A1 DE102004044433 A1 DE 102004044433A1 DE 102004044433 A DE102004044433 A DE 102004044433A DE 102004044433 A DE102004044433 A DE 102004044433A DE 102004044433 A1 DE102004044433 A1 DE 102004044433A1
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- bones
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- magnetic resonance
- segmentation
- data record
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0012—Biomedical image inspection
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/11—Region-based segmentation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/136—Segmentation; Edge detection involving thresholding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10072—Tomographic images
- G06T2207/10088—Magnetic resonance imaging [MRI]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20092—Interactive image processing based on input by user
- G06T2207/20101—Interactive definition of point of interest, landmark or seed
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
- G06T2207/30008—Bone
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
- G06T2207/30096—Tumor; Lesion
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Darstellung von Knochen.The The present invention relates to a method for the preparation of Bone.
Bildgebende Diagnoseverfahren sind bei der Diagnose von Tumoren von großer Bedeutung. Metastasen bösartiger Tumore siedeln sich relativ häufig in den Knochen des menschlichen Körpers an. Sie entstehen aus Tumorzellen, die meist über den Blutkreislauf im Körper gestreut werden und sich dann im Knochenmark ansiedeln. Durch Wachstum der Metastasen im Knochenmark wird die umgebende Knochensubstanz angegriffen, was häufig zu einer Zerstörung der Knochensubstanz führt.Imaging Diagnostic procedures are of great importance in the diagnosis of tumors. Metastases more malignant Tumors settle relatively frequently in the bones of the human body at. They arise from tumor cells, which are mostly scattered through the bloodstream in the body and then settle in the bone marrow. Through growth of Metastases in the bone marrow, the surrounding bone substance is attacked, what often to a destruction the bone substance leads.
Zur Diagnose von Knochenmetastasen werden häufig Szintigrafie oder Positronen-Emissions-Tomografie eingesetzt. Die Szintigrafie ist ein bildgebendes Verfahren der nuklearmedizinischen Diagnostik. Die Bildgebung beruht auf einer Verabreichung einer radioaktiven Substanz, beispielsweise Phosphonat, die sich in den Knochen anreichert. Mit Hilfe einer Gammakamera wird die Strahlung, die beim Zerfall der Radionuklide entsteht, detektiert und in ein Bild umgewandelt. In der Positronen-Emissions-Tomografie wird ebenfalls eine radioaktiv markierte Substanz abgebildet, hier als Schnittbilder des Patienten. Vorteilhaft bei den beiden Verfahren ist die Möglichkeit einer Ganzkörperabbildung, was beispielsweise bei Röntgenuntersuchungen mehrere Untersuchungsschritte erfordern würde und dadurch in einer erhöhten Strahlenbelastung des Patienten resultieren würde. Allerdings ergibt sich auch bei der Szintigrafie und der Positronen-Emissions-Tomografie eine Strahlenbelastung des Patienten durch die radioaktive Substanz. Ebenfalls stellen diese Untersuchungsmethoden hohe logistische Anforderungen dar. Die verwendeten Radionuklide sind sehr kurzlebig und müssen für die konkrete Untersuchung zeitnah produziert werden und können nicht sehr weit transportiert werden.to Diagnosis of bone metastases are commonly scintigraphy or positron emission tomography used. Scintigraphy is an imaging process of the nuclear medicine diagnostics. The imaging is based on a Administration of a radioactive substance, for example phosphonate, which accumulates in the bones. With the help of a gamma camera the radiation that results from the decay of radionuclides becomes detected and converted into an image. In positron emission tomography Also, a radioactively labeled substance is shown here as sectional images of the patient. Advantageous in the two methods is the possibility a whole body picture, which, for example, in X-ray examinations would require several examination steps and thereby in an increased radiation exposure the patient would result. However, this is also the case with scintigraphy and positron emission tomography a radiation exposure of the patient by the radioactive substance. Likewise, these investigation methods represent high logistical requirements. The radionuclides used are very short-lived and need to be concrete Examination can be produced promptly and can not be transported very far become.
Mittels Magnetresonanzuntersuchungen ist es ebenfalls möglich, Knochen des Patienten in einer Ganzkörperuntersuchung abzubilden. Die Auflösung ist dabei sogar besser als bei der Szintigrafie. Bei Magnetresonanzuntersuchungen der Knochen findet vor allem die so genannte STIR-Sequenz („Short TI Inversion Recovery") Anwendung. Mit dieser Sequenz werden allerdings nicht nur die zu untersuchenden Knochen abgebildet, sondern auch das übrige Gewebe des Patienten. Bei der Befundung der aufgenommenen Bilddaten ist der Arzt angehalten, auch das nicht zur eigentlichen Untersuchung zählende Gewebe zu befunden. So wird der Arzt beispielsweise im Fall einer ebenfalls abgebildeten Leber des Patienten versuchen festzustellen, ob eine Erkrankung vorliegt. Dies erhöht den Aufwand für eine Befundung. Außerdem ist es schwierig, allein anhand der Daten aus der STIR-Sequenz eine Leberkrankheit festzustellen, da diese Sequenz nicht sensitiv genug für derartige Fragestellungen ist. Diese Problematik hat einen Einsatz von Magnetresonanzuntersuchungen zur Diagnose von Knochenmetastasen bisher verhindert.through Magnetic resonance imaging also makes it possible to bone the patient in a whole body examination map. The resolution is even better than scintigraphy. In magnetic resonance examinations The bone is most commonly found in the so-called STIR sequence ("Short TI inversion recovery ") Application. With this sequence, however, not only the but also the remaining tissue of the patient. In the diagnosis of the recorded image data is the doctor stopped, not even for the actual examination counting To find tissue. For example, in the case of a doctor also pictured liver of the patient trying to determine if there is a disease. This increases the effort for a report. Furthermore It is difficult to find one based solely on the data from the STIR sequence Liver disease, as this sequence is not sensitive enough for such Questions is. This problem has a use of magnetic resonance examinations previously prevented for the diagnosis of bone metastases.
Es ist Aufgabe der vorliegenden Erfindung, ein Verfahren anzugeben, mit dem Knochen mittels einer Magnetresonanzuntersuchung für eine Befundung geeignet dargestellt werden können.It The object of the present invention is to specify a method with the bone by means of a magnetic resonance examination for a report can be displayed appropriately.
Diese Aufgabe wird durch ein Verfahren mit den Merkmalen des Anspruchs 1 gelöst. Dabei wird zunächst ein die Knochen enthaltender Datensatz mittels einer bildgebenden Magnetresonanzuntersuchung erzeugt. Hiernach findet eine Segmentierung des Datensatzes statt, mittels dem die im Datensatz enthaltenen Knochen von sonstigem dargestellten Gewebe separiert werden. Durch die Segmentierung erhält der diagnostizierende Arzt oder Radiologe die Möglichkeit, sich während der Befundung gänzlich auf die Knochen des Patienten zu konzentrieren.These The object is achieved by a method having the features of the claim 1 solved. It will be first a record containing the bones by means of an imaging Magnetic resonance examination generated. After that finds a segmentation of the Record by which the bones contained in the record separated from other tissue shown. Due to the segmentation the diagnosing gets Doctor or radiologist the opportunity while the diagnosis entirely to concentrate the patient's bones.
Weitere Vorteile und Ausgestaltungen der Erfindung ergeben sich anhand des nachfolgend im Zusammenhang mit den beigefügten Zeichnungen erläuterten Ausführungsbeispiels. Es zeigen:Further Advantages and embodiments of the invention will become apparent from the explained below in conjunction with the accompanying drawings Embodiment. Show it:
Gemäß
In
Anhand
dieser Markierung wird die Segmentierung durchgeführt. Bereiche
mit anderen Intensitäten
werden aus dem Datensatz entfernt, so dass der in
Claims (8)
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DE102004044433A DE102004044433A1 (en) | 2004-09-14 | 2004-09-14 | Bone displaying method for diagnosis of malicious tumor, involves creating data record of bones by magnetic resonance examination, and segmenting record of bones, where bones are marked in record by user, before segmentation |
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DE102004044433A DE102004044433A1 (en) | 2004-09-14 | 2004-09-14 | Bone displaying method for diagnosis of malicious tumor, involves creating data record of bones by magnetic resonance examination, and segmenting record of bones, where bones are marked in record by user, before segmentation |
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DE102004044433A1 true DE102004044433A1 (en) | 2006-01-05 |
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DE102004044433A Ceased DE102004044433A1 (en) | 2004-09-14 | 2004-09-14 | Bone displaying method for diagnosis of malicious tumor, involves creating data record of bones by magnetic resonance examination, and segmenting record of bones, where bones are marked in record by user, before segmentation |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7724931B2 (en) | 2005-11-07 | 2010-05-25 | Siemens Aktiengesellschaft | Method and apparatus for evaluating a 3D image of a laterally-symmetric organ system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002022013A1 (en) * | 2000-09-14 | 2002-03-21 | The Board Of Trustees Of The Leland Stanford Junior University | Assessing condition of a joint and cartilage loss |
US20020147392A1 (en) * | 2000-09-14 | 2002-10-10 | Daniel Steines | Technique for manipulating medical images |
-
2004
- 2004-09-14 DE DE102004044433A patent/DE102004044433A1/en not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002022013A1 (en) * | 2000-09-14 | 2002-03-21 | The Board Of Trustees Of The Leland Stanford Junior University | Assessing condition of a joint and cartilage loss |
US20020147392A1 (en) * | 2000-09-14 | 2002-10-10 | Daniel Steines | Technique for manipulating medical images |
Non-Patent Citations (5)
Title |
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Burkhardt Stefan et al.: "Segmentierung des Knoch- ens aus T1- und PD gewichteten Kerspinbildern vom Kopf". IN: Bildverarbeitung in der Medizin, 2001, S.187-19 |
Burkhardt Stefan et al.: "Segmentierung des Knoch-ens aus T1- und PD gewichteten Kerspinbildern vom Kopf". IN: Bildverarbeitung in der Medizin, 2001, S.187-19 * |
Egmont-Petersen M. et al.: "Segmentation of bone tumor in MR perfusion images using neural networks and multiscale pharmacokinetic features". IN: IEEE 2000, S.80-83 |
Egmont-Petersen M. et al.: "Segmentation of bone tumor in MR perfusion images using neural networksand multiscale pharmacokinetic features". IN: IEEE2000, S.80-83 * |
Snel Jeroen G. et al.: "Detection of the Carpal Con Contours from 3-D MR, Images of the Wrist Using Planar Radial Scale-Space Snake". IN: IEEE Transactions on Medical Imaging, Vol.17, No.6, Dez.1998, S.1063-1072 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7724931B2 (en) | 2005-11-07 | 2010-05-25 | Siemens Aktiengesellschaft | Method and apparatus for evaluating a 3D image of a laterally-symmetric organ system |
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