|
KMID : 1131320140160020105
|
|
Journal of Korean Society of Computed Tomographic Technology
2014 Volume.16 No. 2 p.105 ~ p.115
|
|
|
Usability evaluation of Breast CT with Dual Energy
|
|
Lee Min-Su
Kim Hyeun-Joo
Kim Jin-Bae
Kim Kyeong-Joon
Joo Myeong-Sik
Jo In-Wan
Yoo Byeong-Heon
|
|
|
Abstract
|
|
|
Purpose : We want to maximize the usability and value of a radiological diagnosis of breast cancer that examine the Breast CT with Dual Energy CT using the GSI scan.
Material and Methods : Instrument used in this study was 64-MDCT(GE), doing the GSI scan with Dual Energy Breast CT that selected 20 patients randomly who underwent Breast cancer diagnosis in this hospital with Dual Energy Breast CT, the conducted clinical study and evaluation were analyzed using quantitative and qualitative analysis based on the phantom study. Analysis of radiological data is Advantage workstation(Version4.6) SPSS18.0 for Windows: SPSS Chicago, the IL).
Results : As a result for HU value of each substance used for ACR breast phantom of Mammography measured 20 times with existing SECT and applied to experiment DECT, it is measured at -15.79±0.78 for SECT, -14.02±1.27 for DECT in mass phantom, 3.2±0.4 for SECT, 2.91±0.78 for DECT in Nylon fiber phantom, -23.39±0.25 for SECT, -34.59±2.83 for DECT in Specks phantom. As result of depth and surface dose using acrylic phantom of ion camber, it is 0.91±0.07 for SECT and 1.31±0.14 for DECT at 12’clock direction, 0.96±0.2 for SECT and 1.15±0.07 for DECT at 3’o clock, 0.86±0.05 for SECT and 1±0.02 for DECT at 6’o clock, 0.7± 0.14 for SECT and 1.14±0.08 for DECT at 9’o clock, 0.85±0.05 for SECT and 1±0.04 for DECT in center. As result of the size of the cancer compared with reports of histopathology Breast cancer and obtained image after DECT,it is measured similarly in all patients except for one and we could maximize diagnosis usability for reconstruction of three-dimensional (3D) images of the measurement volume(㎤) of cancer. As using analyzable MD(Material Decomposition) function of each substance, component analysis and contrast enhancement patterns of cancer has become possible. As a result of qualitative analysis, it is rated Equivalent 47, Acceptable 13, Unacceptable 0 from the all images of breast CT using DECT.
Conclusion : DECT in Breast CT is the method of analysis that applied for MD Analysis, Volme measurement, Color coding, Spectral HU curve through GSI Scan, it is expected positive effect suggesting various diagnosis method.
|
|
|
KEYWORD
|
|
|
DECT , GSI(gemstone spectral image) , Invasive ductal carcinoma
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|
|