Single energy micro CT SkyScan 1173 for the characterization of urinary stone

6th Asian Physics Symposium

Fitri, L.A.^1 ; Asyana, V.^1 ; Ridwan, T.^2 ; Anwary, F.^2 ; Soekersi, H.^2 ; Latief, F.D.E.^3 ; Haryanto, F.^1

Nuclear Physics and Biophysics Research Group, Physics Department, Institut Teknologi Bandung, Jl. Ganesa 10, Bandung

40132, Indonesia^1

Hasan Sadikin Hospital, Jl. Pasteur 38, Bandung

40161, Indonesia^2

Physics of Earth and Complex System Division, Physics Department, Institut Teknologi Bandung, Jl. Ganesa 10, Bandung

40132, Indonesia^3

关键词: Hounsfield units;    In-house software;    Internal structure;    National Institute of Standards and Technology;    Region of interest;    Spectral curves;    Struvites;    Urinary stones;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/739/1/012074/pdf
DOI  :  10.1088/1742-6596/739/1/012074

来源: IOP

【 摘 要 】

A urinary stone is a solid piece of material produced from crystallization of excreted substances in the urine. Knowledge of the composition of urinary stones is essential to determine the suitable treatment for the patient. The aim of this research was to characterize urinary stones using single energy micro CT SkyScan 1173. Six human urinary stones were scanned in vitro using 80 kV in micro CT SkyScan 1173. The produced projection, images, were reconstructed using NRecon (in-house software from SkyScan). The images of urinary stones were analyzed using CT Analyser (CT An) to obtain information of the internal structure and the Hounsfield Unit (HU) value to determine the information regarding the composition of the urinary stones, respectively. The average HU values from certain region of interests in the same slice were compared with spectral curves of known materials from National Institute of Standards and Technology (NIST). From the analysis, the composition of the six scanned stones were obtained. Two stones are composed of cystine, two are composed of struvite, two other stones are composed of struvite+cystine. In conclusion, the single energy micro CT with 80 kV can be used identifying cystine and struvite urinary stone.