Forskning
Udskriv Udskriv
Switch language
Region Hovedstaden - en del af Københavns Universitetshospital
Udgivet

Attenuation and scatter correction in myocardial SPET: improved diagnostic accuracy in patients with suspected coronary artery disease

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

DOI

  1. High nodal FDG uptake increases risk of distant metastasis in patients with oropharyngeal squamous cell carcinoma

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Characterization of the serotonin 2A receptor selective PET tracer (R)-[18F]MH.MZ in the human brain

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  3. Assessment of acute bone loading in humans using [18F]NaF PET/MRI

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  4. 18F FDG-PET/CT has poor diagnostic accuracy in diagnosing shoulder PJI

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Vis graf over relationer

Artefacts hamper the accuracy of myocardial single-photon emission tomography (SPET). Systems are now available that may compensate for attenuation and scatter. We evaluated a commercial system for attenuation (AC) and scatter correction (SC) in everyday routine using coronary angiography (CAG) as a reference. A total of 142 consecutive patients referred for myocardial SPET had their studies processed with and without SCAC. Uncorrected and SCAC images were scored by blinded, consensus readings. If readings differed, CAG, if available, was used as a reference. The readings differed in 37% of cases. Among these cases SCAC caused disappearance of irreversible defects (74%), disappearance of reversible defects (14%) and change of irreversible to reversible defects (9%). Two new defects were introduced by SCAC. The defects influenced were located inferiorly (75%), anteriorly (14%), septally (7%), laterally (2%) and apically (2%). CAG, available in 29 of the discrepant cases, supported SCAC and uncorrected image readings in 83% and 7% of cases, respectively. In conclusion, we found a commercial system for AC and SC in myocardial SPET to be of great diagnostic help in a consecutive series of patients. Using CAG as a reference, the SCAC interpretation was confirmed in nearly all cases.

OriginalsprogEngelsk
TidsskriftEuropean Journal of Nuclear Medicine and Molecular Imaging
Vol/bind29
Udgave nummer11
Sider (fra-til)1438-42
Antal sider5
ISSN1619-7070
DOI
StatusUdgivet - nov. 2002

ID: 55075615