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Research on radiation exposure from CT part of hybrid camera and diagnostic CT

机译：混合摄像机CT部分的辐射暴露与诊断CT的研究

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Research on radiation exposure from CT part of hybrid camera in seven different Departments of Nuclear Medicine (DNM) was conducted. Processed data and effective dose (E) estimations led to the idea of phantom verification and comparison of absorbed doses and software estimation. Anonymous data from about 100 examinations from each DNM was gathered. Acquired data was processed and utilized by dose estimation programs (ExPACT, ImPACT, ImpactDose) with respect to the type of examination and examination procedures. Individual effective doses were calculated using enlisted programs. Preserving the same procedure in dose estimation process allows us to compare the resulting E. Some differences and disproportions during dose estimation led to the idea of estimated E verification. Consequently, two different sets of about 100 of TLD 100H detectors were calibrated for measurement inside the Aldersnon RANDO Anthropomorphic Phantom. Standard examination protocols were examined using a 2 Slice CT- part of hybrid SPECT/CT. Moreover, phantom exposure from body examining protocol for 32 Slice and 64 Slice diagnostic CT scanner was also verified. Absorbed dose (D_(T,R)) measured using TLD detectors was compared with software estimation of equivalent dose H_T values, computed by E estimation software. Though, only limited number of cavities for detectors enabled measurement within the regions of lung, liver, thyroid and spleen-pancreas region, some basic comparison is possible.
机译：在七个不同的核医学科（DNM）进行了混合相机CT部分的放射线照射研究。处理的数据和有效剂量（E）估计导致了幻像验证以及吸收剂量和软件估计的比较的想法。从每个DNM进行的大约100次检查中收集了匿名数据。关于检查和检查程序的类型，剂量估计程序（ExPACT，ImPACT，ImpactDose）处理并利用了获得的数据。使用登记程序计算个体有效剂量。在剂量估算过程中保留相同的程序，使我们可以比较所得的E。剂量估算过程中的一些差异和不均衡导致了估算E验证的想法。因此，在Aldersnon RANDO拟人化幻影内部校准了两组不同的约100个TLD 100H检测器。使用混合SPECT / CT的2片CT部分检查标准检查方案。此外，还验证了针对32片和64片诊断CT扫描仪的人体检查方案中的幻像暴露。将使用TLD检测器测得的吸收剂量（D_（T，R））与等效剂量H_T值的软件估计（由E估计软件计算）进行比较。虽然只有有限数量的腔体可以在肺，肝，甲状腺和脾胰脏区域进行测量，但是一些基本的比较还是可能的。

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