CONSTITUTION:When an image having a slice range of the thickness of 5mm is formed, having a position X0 as center, by using a CT scanner 1, a table 7 is shifted to a position (X0-1.25mm), and the X-ray irradiated from an X-ray tube 5 is throttled, and the slice thickness is ...
MRI图像若主要反映的是组织间T1值差别,为T1加权像(T1weighted image,T1WI)。 MRI图像具有多个成像参数与CT检查的单一密度参数成像不同,MRI检查有多个成像参数的特点,即有反映T1弛豫时间的T1值、反映T2弛豫时间的T2值和反映质子密度的弛豫时间值等。MRI图像若主要反映的是组织间T1值差别,为T1加权像(T1weighted image...
We have calculated the intensity distribution of scatter radiation as well as primary radiation on a two-dimensional detector plane in a cone-beam x-ray three-dimensional CT scanner, using Monte Carlo method. From the two-dimensional projections including the scatter radiation arising in cylindrical ...
ANATOM FIT CT Scanner Features: ANATOM Fit is affordable and, of course, versatile to easily handl with all basic clinical applications in routine scanning. Thoughtfully,ANATOM Fit is designed to deliver you benefits of diagnostic confidence,low dose for patient care, finan...
mobile CTPurpose: The imaging performance and dose of a mobile CT scanner (Brainlab Airo, Munich, Germany) is evaluated, with particular consideration to assessment of technique protocols for image-guided brachytherapy. Method: Dose measurements were performed using a 100-mm-length pencil chamber at...
PET / CT scannerreconstruction algorithmsradiopharmaceuticalsattenuation correction factorThanking to the ability of providing images of slices of organs with very high accuracy currently the PET / CT scanner is widely used for early diagnosis of many cancers and some other diseases. This paper examines...
MATERIAL AND METHODS: Intraoperative imaging was performed on a 40-slice sliding-gantry CT scanner (Siemens SOMATOM Sensation 40 Open) with an expanded gantry bore (82cm). Raw image data were reconstructed with a slice thickness and increment of 0.6mm and were imported to a frameless infrared-...
Dosimetric impact of image artifact from a wide-bore CT scanner in radio- therapy treatment planning. Med Phys 2011; 38(7): 4451- 4463.Wu V, Podgorsak M, Tran T, Malhotra H, Wang I (2011) Dosimetric impact of image artifact from a wide-bore CT scanner in radiotherapy treatment ...
8、0 fpsModeFixed modeDual gain modeCone beam CT scannerCone beam CT detectorFeature of cone beam CT Pros:Fast volume scanningIsotropic-grid resolution volume reconstructionHigh-spatial resolutionExposure and dose efficient usage (no slice leakage) Cons:Cone-beam artifacts Small scan coverage (due to...
Modality:CT 16 File Size:21 MB Description: Normal CT coronary angiogram acquired on a 16 detectors CT scanner. Open in OsiriX Download ZIP Alias Name:GRUSELAMBIX Modality:XA angiogram File Size:72 MB Description: Coronary angiogram. Pre and post balloon angioplasty of a stenosis or the right ...