Grey-scale gating for freehand 3D ultrasound
Proceedings IEEE International Symposium on Biomedical Imaging - Trang 993-996
Tóm tắt
Freehand three-dimensional (3D) ultrasound is a flexible imaging technique which allows a 3D data set to be constructed of sequential B-scans from a conventional ultrasound scanner. Since the data is acquired over several seconds, physiological motion generates spatial artifacts in visualisations of the data. Consequently, an electrocardiogram (ECG) signal is often used to gate the acquisition of B-scans to a single point in the cardiac cycle. We present a technique which can remove temporal artifacts by using properties of the grey-scale B-scan data, obviating the need for an external gating signal. B-scans are acquired throughout the cardiac cycle, and any phase can be selected for subsequent visualisation. This enables limited real-time 4D display of the data.
Từ khóa
#Ultrasonic imaging #Probes #Electrocardiography #Anatomy #Data visualization #Volume measurement #Displays #Ultrasonic variables measurement #Heart #ThyristorsTài liệu tham khảo
10.1016/S0301-5629(99)00130-1
10.1161/01.STR.29.8.1631
sklansky, 1998, Three-dimensional fetal echocardiograpby: gated versus nongated techniques, J Ultrasound Med, 17, 451, 10.7863/jum.1998.17.7.451
prager, 1999, Practical segmentation of 3D ultrasound, Proc Med Image Understand Anal, 17
10.1046/j.1469-0705.2000.00108.x
10.1016/S0301-5629(00)00315-X
10.1016/S0301-5629(97)00281-0
10.1007/3-540-45468-3_34
10.1259/bjr.72.855.10396220
10.1016/S0301-5629(00)00334-3
10.1016/S1361-8415(99)80003-6
10.1016/S0301-5629(00)00341-0
10.1016/S0301-5629(98)00012-X
belohlavek, 1994, 3D echocardiograpby: Reconstruction algorithm and diagnostic performance of resulting images, Proc SPIE, 2359, 680, 10.1117/12.185230
10.1016/S0301-5629(01)00395-7
sklansky, 1999, Real-time three-dimensional fetal echocardiography, J Ultrasound Med, 18, 745, 10.7863/jum.1999.18.11.745
10.1016/S0301-5629(99)00125-8
10.1016/S0301-5629(99)00012-5