搜索结果: 1-10 共查到“临床工程学 Ultrasound”相关记录10条 . 查询时间(0.068 秒)
Shift-Invariant , DWT-Based “Project ion” Method for Estimation of Ultrasound Pulse Power Spectrum
Shift-Invariant DWT-Based Ultrasound
2010/1/6
An approach to computing estimates of the
ultrasound pulse spectrum from echo-ultrasound RF sequences,
measured from biological tissues, is proposed. It
is computed by a “projection” algorithm base...
Blind Deconvolution of Ultrasound Sequences Using Nonparametric Local Polynomial Estimates of the Pulse
Blind deconvolution pulse estimation ultrasound
2010/1/6
The problem of reconstructing the reflectivity of a
biological tissue is examined by means of blind deconvolution of
the echo ultrasound signals. It is shown that the quality of the
reconstruction ...
Development of a New Method for Discriminating Embolus from Air Bubble by Active Ultrasound Doppler Method. 1 (Experiments of Ultrasound Irradiation Perpendicular to a Tube Axis in Flows of Water and Modeled Blood)
USD TCD cerebral embolism characteristic acoustic impedance acoustic radiation force
2009/8/24
An “active” ultrasound Doppler method was newly developed in order to directly and easily discriminate emboli from micro bubbles flowing in blood vessel. The principle of this method is based on measu...
Optimization of the Self-referenced Temperature Imaging Method in the Magnetic Resonance-guided Focused Ultrasound Surgery for Uterine Fibroid
magnetic resonance imaging temperature imaging self-referenced method optimization focused ultrasound surgery
2009/6/9
The self-reference method is a magnetic resonance (MR) thermometry method for mapping temperature changes in a target organ using the baseline phase field in a region of interest (ROI) estimated by th...
Development of a Forward-looking Ultrasound Imager for Intravascular Treatment
ultrasound imager forward-looking probe directivity 1-3 composite intravascular ultrasound
2009/6/9
An intravascular forward-looking ultrasound probe that is 3 mm in diameter has been developed. We used the probe as acoustic sources and receivers to make an ultrasound forward-looking image, but many...
Basic Studies on Gene Therapy with Ultrasound.
Combined Cancer Therapy of Ultrasound and Drug Delivery
Cancer Therapy Ultrasound Drug Delivery
2009/6/9
Combined Cancer Therapy of Ultrasound and Drug Delivery.
Calibration of an orientation sensor for freehand 3D ultrasound and its use in a hybrid acquisition system
an orientation sensor freehand 3D ultrasound a hybrid acquisition system
2010/2/25
Gold standard freehand 3D ultrasound acquisition requires the synthesis of image-based techniques, for good fine scale detail, and position sensors, for good large scale geometrical accuracy. A hybrid...
A coarse-to-fine approach to prostate boundary segmentation in ultrasound images
prostate boundary segmentation ultrasound images
2010/2/26
A segmentation procedure consisting of four main stages is proposed. In the first stage, a locally adaptive contrast enhancement method is used to generate a well-contrasted image. In the second stage...
A 63 element 1.75 dimensional ultrasound phased array for the treatment of benign prostatic hyperplasia
A 63 element 1.75 dimensional ultrasound phased array benign prostatic hyperplasia
2010/3/1
In this paper, the design, construction and evaluation of a 1.75 dimensional ultrasound phased array to be used for treating prostate cancer and benign prostatic hyperplasia is presented. With this ar...