Results 131 to 140 of about 71,044 (162)
Some of the next articles are maybe not open access.
MP‐RAGE subtraction venography: A new technique
Journal of Magnetic Resonance Imaging, 1995AbstractPreliminary evaluation of a new magnetic resonance (MR) venography technique was performed with data sets from five patients undergoing BAR imaging of the brain before and after intravenous administration of gadopentetate dimeglumine. Before contrast agent injection, the patients were imaged with MP‐RAGE (magnetization‐prepared rapid gradient ...
J, Stevenson, E A, Knopp, A W, Litt
openaire +2 more sources
Subtractive Hybridization Techniques to Study Cellular Senescence
2007Molecular and cellular processes related to the senescence syndrome are determined by programs of differential gene expression. Subtractive cDNA hybridization is a powerful approach to identify and isolate differentially expressed genes in various systems.
Michal Bassani, Sternberg +1 more
openaire +2 more sources
A novel spectral subtraction technique for cognitive radios
2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2013In the past a lot of work has been done to remove noise from speech. Most of the presented techniques were derived from Boll's spectral subtraction technique. Roughly speaking the spectral subtraction techniques consists of estimating the noise power during the periods when no speech is present and subtracting this estimate of the noise power from the ...
Wendy Van Moer +2 more
openaire +2 more sources
[Dacryocystography in digital subtraction technique].
Aktuelle Radiologie, 1996The authors emphasize the usefulness of dacryography to approach patients affected by epiphora. Digital dacryocystography had improved the anatomic and functional assessment of lacrimal apparatus. The methodology allowed in all patients an accurate visualization of the lacrimal system and the identification, in twenty cases, of pathological causes of ...
A, Ragozzino +5 more
openaire +1 more source
A Robust Technique for Background Subtraction in Traffic Video
2009A novel background model based on Marr wavelet kernel and a background subtraction technique based on binary discrete wavelet transforms are introduced. The background model keeps a sample of intensity values for each pixel in the image and uses this sample to estimate the probability density function of the pixel intensity.
Tao Gao 0002 +3 more
openaire +1 more source
[Digital subtraction technique in dentistry].
Revue belge de medecine dentaire, 2008By computerized subtracting the grey values of geometrically corresponding pixels in consecutively taken digital X-ray images, it is possible to visualize or measure changes in radiodensity over time. This can be very useful, both in clinical and research applications, for the follow-up of tooth mineralization or bone changes. A major problem, however,
Peter, Bottenberg +2 more
openaire +1 more source
Pseudomask Technique for Digital Subtraction Angiography (DSA)
1984In recent years, the field of blood vessel diagnostics has seen increasing importance of a process called “Digital Subtraction Angiography” (DSA) which produces enhanced images of blood vessels [3,4]. It is accomplished by subtracting two digitized X-ray images of the patient, the first one taken before and the second one taken after the injection of a
Pierre A. Devijver +5 more
openaire +1 more source
Subtraction Technique in Renal Angiography
Journal of Urology, 1966H W, ten Cate +2 more
openaire +2 more sources
Television Subtraction Techniques in Urography
Journal of Urology, 1966J H, Deweerd, C B, Holman
openaire +2 more sources
Optimizing early cancer diagnosis and detection using a temporal subtraction technique
Technological Forecasting and Social Change, 2021Noriaki Miyake +2 more
exaly