SPECT using 99mTc-DTPA for the assessment of disease activity in Graves' ophthalmopathy: a comparison with the results from MRI.
Identifieur interne : 003462 ( Main/Exploration ); précédent : 003461; suivant : 003463SPECT using 99mTc-DTPA for the assessment of disease activity in Graves' ophthalmopathy: a comparison with the results from MRI.
Auteurs : RBID : pubmed:12464787English descriptors
- KwdEn :
- Adult, Aged, Eye (radionuclide imaging), Female, Graves Disease (pathology), Graves Disease (radionuclide imaging), Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Octreotide (analogs & derivatives), Octreotide (diagnostic use), Radiopharmaceuticals (diagnostic use), Technetium Tc 99m Pentetate (diagnostic use), Tomography, Emission-Computed, Single-Photon.
- MESH :
- chemical , analogs & derivatives : Octreotide.
- chemical , diagnostic use : Octreotide, Radiopharmaceuticals, Technetium Tc 99m Pentetate.
- pathology : Graves Disease.
- radionuclide imaging : Eye, Graves Disease.
- Adult, Aged, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Tomography, Emission-Computed, Single-Photon.
Abstract
Currently available methods for the estimation of disease activity in the orbits of patients with Graves' ophthalmopathy (GO) have the disadvantages of being either expensive or time consuming. The aim of this study was to develop a quick, reliable method using Tc labelled diethylenetriaminepentaacetic acid (DTPA) and four-headed single photon emission computed tomography (SPECT) for this purpose. The theoretical basis of the method is that the high capillarization and oedema in the orbit may be reflected on Tc-DTPA images in GO. SPECT data of 28 orbits of 14 patients with GO were compared with magnetic resonance imaging (MRI) T2 relaxation time scores. Based on the number of 'active' muscles with T2 relaxation times of more than 70 ms in a given orbit, an MRI score of 0 (no active muscle) to 4 (all rectus muscles active) was assigned to the orbit. With MRI, 18 orbits were inactive, and 10 were active. Thirty minutes after the intravenous administration of 7 MBq.kg Tc-DTPA, 128 projections were acquired by a four-headed SPECT. On the sum of six transaxial slices containing the entire bulbar region of the skull, a triangle-like region of interest (ROI) was drawn (OR ROI). This ROI was 'slipped' to the right temporal region of the brain as reference site (B ROI). The count ratios of OR/B were calculated and compared to MRI score values. In the group of 18 inactive orbits (an MRI score of zero on both sides), in the transaxial plane, the mean OR/B value was 6.4+/-1.17, and in the group of 10 active orbits (an MRI score of 1-3) 8.30+/-2.08, the difference being significant (P <0.05). Tc-DTPA orbital SPECT is a promising method for the estimation of disease activity in the orbits of patients with Graves' ophthalmopathy.
DOI: 10.1097/01.mnm.0000046214.83338.50
PubMed: 12464787
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The aim of this study was to develop a quick, reliable method using Tc labelled diethylenetriaminepentaacetic acid (DTPA) and four-headed single photon emission computed tomography (SPECT) for this purpose. The theoretical basis of the method is that the high capillarization and oedema in the orbit may be reflected on Tc-DTPA images in GO. SPECT data of 28 orbits of 14 patients with GO were compared with magnetic resonance imaging (MRI) T2 relaxation time scores. Based on the number of 'active' muscles with T2 relaxation times of more than 70 ms in a given orbit, an MRI score of 0 (no active muscle) to 4 (all rectus muscles active) was assigned to the orbit. With MRI, 18 orbits were inactive, and 10 were active. Thirty minutes after the intravenous administration of 7 MBq.kg Tc-DTPA, 128 projections were acquired by a four-headed SPECT. On the sum of six transaxial slices containing the entire bulbar region of the skull, a triangle-like region of interest (ROI) was drawn (OR ROI). This ROI was 'slipped' to the right temporal region of the brain as reference site (B ROI). The count ratios of OR/B were calculated and compared to MRI score values. In the group of 18 inactive orbits (an MRI score of zero on both sides), in the transaxial plane, the mean OR/B value was 6.4+/-1.17, and in the group of 10 active orbits (an MRI score of 1-3) 8.30+/-2.08, the difference being significant (P <0.05). Tc-DTPA orbital SPECT is a promising method for the estimation of disease activity in the orbits of patients with Graves' ophthalmopathy.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">12464787</PMID><DateCreated><Year>2002</Year><Month>12</Month><Day>04</Day></DateCreated><DateCompleted><Year>2003</Year><Month>06</Month><Day>30</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0143-3636</ISSN><JournalIssue CitedMedium="Print"><Volume>23</Volume><Issue>12</Issue><PubDate><Year>2002</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Nuclear medicine communications</Title><ISOAbbreviation>Nucl Med Commun</ISOAbbreviation></Journal><ArticleTitle>SPECT using 99mTc-DTPA for the assessment of disease activity in Graves' ophthalmopathy: a comparison with the results from MRI.</ArticleTitle><Pagination><MedlinePgn>1211-6</MedlinePgn></Pagination><Abstract><AbstractText>Currently available methods for the estimation of disease activity in the orbits of patients with Graves' ophthalmopathy (GO) have the disadvantages of being either expensive or time consuming. The aim of this study was to develop a quick, reliable method using Tc labelled diethylenetriaminepentaacetic acid (DTPA) and four-headed single photon emission computed tomography (SPECT) for this purpose. The theoretical basis of the method is that the high capillarization and oedema in the orbit may be reflected on Tc-DTPA images in GO. SPECT data of 28 orbits of 14 patients with GO were compared with magnetic resonance imaging (MRI) T2 relaxation time scores. Based on the number of 'active' muscles with T2 relaxation times of more than 70 ms in a given orbit, an MRI score of 0 (no active muscle) to 4 (all rectus muscles active) was assigned to the orbit. With MRI, 18 orbits were inactive, and 10 were active. Thirty minutes after the intravenous administration of 7 MBq.kg Tc-DTPA, 128 projections were acquired by a four-headed SPECT. On the sum of six transaxial slices containing the entire bulbar region of the skull, a triangle-like region of interest (ROI) was drawn (OR ROI). This ROI was 'slipped' to the right temporal region of the brain as reference site (B ROI). The count ratios of OR/B were calculated and compared to MRI score values. In the group of 18 inactive orbits (an MRI score of zero on both sides), in the transaxial plane, the mean OR/B value was 6.4+/-1.17, and in the group of 10 active orbits (an MRI score of 1-3) 8.30+/-2.08, the difference being significant (P <0.05). Tc-DTPA orbital SPECT is a promising method for the estimation of disease activity in the orbits of patients with Graves' ophthalmopathy.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Galuska</LastName><ForeName>L</ForeName><Initials>L</Initials><Affiliation>Department of Nuclear Medicine, University of Debrecen Medical and Health Science Center, Debrecen, Hungary. galuska@ibel.dote.hu</Affiliation></Author><Author ValidYN="Y"><LastName>Leovey</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Szucs-Farkas</LastName><ForeName>Z</ForeName><Initials>Z</Initials></Author><Author ValidYN="Y"><LastName>Garai</LastName><ForeName>I</ForeName><Initials>I</Initials></Author><Author ValidYN="Y"><LastName>Szabo</LastName><ForeName>J</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Varga</LastName><ForeName>J</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Nagy</LastName><ForeName>E V</ForeName><Initials>EV</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Comparative Study</PublicationType><PublicationType>Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Nucl Med Commun</MedlineTA><NlmUniqueID>8201017</NlmUniqueID><ISSNLinking>0143-3636</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Radiopharmaceuticals</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>indium-111-octreotide</NameOfSubstance></Chemical><Chemical><RegistryNumber>RWM8CCW8GP</RegistryNumber><NameOfSubstance>Octreotide</NameOfSubstance></Chemical><Chemical><RegistryNumber>VW78417PU1</RegistryNumber><NameOfSubstance>Technetium Tc 99m Pentetate</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Eye</DescriptorName><QualifierName MajorTopicYN="N">radionuclide imaging</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Graves Disease</DescriptorName><QualifierName MajorTopicYN="Y">pathology</QualifierName><QualifierName MajorTopicYN="Y">radionuclide imaging</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Image Processing, Computer-Assisted</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Magnetic Resonance Imaging</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Octreotide</DescriptorName><QualifierName MajorTopicYN="Y">analogs & derivatives</QualifierName><QualifierName MajorTopicYN="N">diagnostic use</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Radiopharmaceuticals</DescriptorName><QualifierName MajorTopicYN="Y">diagnostic use</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Technetium Tc 99m Pentetate</DescriptorName><QualifierName MajorTopicYN="Y">diagnostic use</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Tomography, Emission-Computed, Single-Photon</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2002</Year><Month>12</Month><Day>5</Day><Hour>4</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2003</Year><Month>7</Month><Day>2</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2002</Year><Month>12</Month><Day>5</Day><Hour>4</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">12464787</ArticleId><ArticleId IdType="doi">10.1097/01.mnm.0000046214.83338.50</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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