Quality Control Tests of SPECT- CT

Year 2019, , 39 - 56, 31.05.2019

Duygu Tunçman Genç , Bilal Kovan Bayram Demir , Cüneyt Türkmen

https://doi.org/10.29233/sdufeffd.478666

Cited By: 1

Abstract

The one of the aim of
nuclear medicine is diagnosis of an abnormal metabolic activities in target
organs.  In a routine nuclear medicine
imaging procedure, a radiopharmaceutical is used. Radiopharmaceutical’s
radionuclide part emits gamma radiation. This radiation is dedected by Gamma
Camera or Single Photon Emission Computed Tomography (SPECT). A computed
tomography (CT) device was added to the SPECT(SPECT- CT). To combine anatomical
images. Image quality of this device is important for accurate diagnosis and
treatment of diseases. By means of quality control tests, performance changes
of device are dedected. A various quality control parameters such as
uniformity, sensivity, resolution, linearity have been developed for Gamma
cameras, SPECT. Quality control test results are should be verify by comparing acceptable
results. In this study, quality control tests of SPECT-CT are performed as
proposed by the National Electrical Manufacturers Association ( NEMA) and it was
aimed to investigate some correction methods.

Keywords

Gamma camera, SPECT, SPECT – CT, Quality control tests

SPECT – BT ’nin Kalite Kontrolleri

Abstract

Nükleer tıbbın
amaçlarından biri hedef organlardaki anormal metabolik aktivitelerin tanısıdır.
Rutin bir nükleer tıp görüntüleme sürecinde, radyofarmasötik kullanılır.
Radyofarmasötiğin radyonüklid kısmı gama radyasyonu yayar. Bu radyasyon Gama
Kamera veya Tek Foton Emisyon Bilgisayarlı Tomografi (SPECT) tarafından dedekte
edilir. Anatomik görüntüleri birleştirmek için SPECT cihazına Bilgisayarlı
Tomografi (BT) cihazı eklenmiştir (SPECT – BT) . Bu cihazın görüntü kalitesi
doğru tanı ve hastalıkların tedavisi için önemlidir. Kalite konteol testleri
sayesinde, cihazdaki performans değişiklikleri belirlenir. Homojenite,
sensivite, rezolüsyon, linearite gibi çeşitli kalite kontrol parametereleri
gama kameralar ve SPECT için geliştirilmiştir. Kalite kontrol testi sonuçları
kabul edilebilir sonuçlarla karşılaştırılarak doğrulanmalıdır. Bu çalışmada,
SPECT-CT'nin kalite kontrol testleri National Electrical Manufacturers
Association (NEMA) tarafından önerildiği gibi yapılmış ve bazı düzeltme yöntemlerinin
araştırılması amaçlanmıştır.

Keywords

Gama kamera, SPECT, SPECT-BT, Kalite Kontrol Testleri

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