scholarly journals Comparison of Optimized Cut-off Frequency of Butterworth Filter for Cerebral Perfusion SPECT Images Assessed by Real Space and Frequency Space Domains

1998 ◽  
Vol 54 (6) ◽  
pp. 764-770 ◽  
Author(s):  
HIDEO OHNISHI ◽  
TETSUO KIDA ◽  
KAZUO NOMA ◽  
SATORU MATSUO ◽  
MASAHIRO YOSHIMURA ◽  
...  
Keyword(s):  
Cerebral Perfusion ◽  
Real Space ◽  
Butterworth Filter ◽  
Frequency Space ◽  
Perfusion Spect ◽  
Spect Images

scholarly journals Visual evalution of SPECT images with variation of butterworth filter

1996 ◽  
Vol 52 (2) ◽  
pp. 275
Author(s):  
Masamichi Yanagisawa ◽  
Fujimi Kinoshita ◽  
Hirokazu Tsuruoka ◽  
Mika Morisada
Keyword(s):  
Butterworth Filter ◽  
Spect Images

scholarly journals Nondestructive real-space imaging of energy dissipation distributions in randomly networked conductive nanomaterials

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Takahiro Morimoto ◽  
Seisuke Ata ◽  
Takeo Yamada ◽  
Toshiya Okazaki
Keyword(s):  
Functional Materials ◽  
Real Space ◽  
Network Structures ◽  
Conductive Heat ◽  
Frequency Space ◽  
Dynamical Method ◽  
Intensity Images ◽  
Lock In ◽  
Conductive Nanomaterials ◽  
Micrometer Scale

Abstract For realization the new functional materials and devices by conductive nanomaterials, how to control and realize the optimum network structures are import point for fundamental, applied and industrial science. In this manuscript, the nondestructive real-space imaging technique has been studied with the lock-in thermal scope via Joule heating caused by ac bias conditions. By this dynamical method, a few micrometer scale energy dissipations originating from local current density and resistance distributions are visualized in a few tens of minutes due to the frequency-space separation and the strong temperature damping of conductive heat components. Moreover, in the tensile test, the sample broken points were completely corresponding to the intensity images of lock-in thermography. These results indicated that the lock-in thermography is a powerful tool for inspecting the intrinsic network structures, which are difficult to observe by conventional imaging methods.

Enhanced perfusion defect clarity and inhomogeneity in smokers?? lungs with deep-inspiratory breath-hold perfusion SPECT images

2005 ◽  
Vol 26 (9) ◽  
pp. 801-807 ◽  
Author(s):  
Kazuyoshi Suga ◽  
Kawakami Yasuhiko ◽  
Hideyuki Iwanaga ◽  
Norio Hayashi ◽  
Tomio Yamashita ◽  
...  
Keyword(s):  
Perfusion Defect ◽  
Breath Hold ◽  
Perfusion Spect ◽  
Spect Images

scholarly journals The Effect of Electroencephalography Leads on Image Quality in Cerebral Perfusion SPECT and 18F-FDG PET/CT

2018 ◽  
Vol 46 (4) ◽  
pp. 359-361
Author(s):  
Lulu Zhang ◽  
Stephanie P. Yen ◽  
Marc A. Seltzer ◽  
George P. Thomas ◽  
Kristen Willis ◽  
...  
Keyword(s):  
Image Quality ◽  
Fdg Pet ◽  
Cerebral Perfusion ◽  
Pet Ct ◽  
Perfusion Spect ◽  
18F Fdg ◽  
Fdg Pet Ct

A Monte Carlo analysis technique applied to cerebral perfusion SPECT scans

2005 ◽  
Vol 26 (9) ◽  
pp. 809-818
Author(s):  
Alice Cluckie ◽  
Peter H. Jarritt ◽  
Muriel Buxton-Thomas
Keyword(s):  
Monte Carlo ◽  
Cerebral Perfusion ◽  
Monte Carlo Analysis ◽  
Analysis Technique ◽  
Perfusion Spect
Sign in / Sign up

Export Citation Format

Share Document