Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Joseph K. Maier"'
Publikováno v:
Medical physics. 39(6Part28)
Purpose: To develop a phantom and measurement protocol for quantifying spatial accuracy of an MR imaging system over its entire imaging volume. Methods: The measurement protocol is comprised of a phantom, a set of MR sequence parameters for imaging t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d44f1269428503b70d2ddf3858c902f3
https://pubmed.ncbi.nlm.nih.gov/28519637
https://pubmed.ncbi.nlm.nih.gov/28519637
Autor:
Joseph K. Maier, Bruce D. Collick, Robert D. Peters, Kevin F. King, Gaohong Wu, Dan Xu, R. Scott Hinks
Publikováno v:
Magnetic Resonance in Medicine. 70:1293-1305
Purpose The proposed method is aimed at reducing eddy current (EC) induced distortion in diffusion weighted echo planar imaging, without the need to perform further image coregistration between diffusion weighted and T2 images. These ECs typically ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70c158fddfecd06a7d7a73985ab223c0
https://doi.org/10.1002/mrm.24589
https://doi.org/10.1002/mrm.24589
Autor:
Dan, Xu, Joseph K, Maier, Kevin F, King, Bruce D, Collick, Gaohong, Wu, Robert D, Peters, R Scott, Hinks
Publikováno v:
Magnetic resonance in medicine. 70(5)
The proposed method is aimed at reducing eddy current (EC) induced distortion in diffusion weighted echo planar imaging, without the need to perform further image coregistration between diffusion weighted and T2 images. These ECs typically have signi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f640ec42dbc2ce151afda697284ff871
https://pubmed.ncbi.nlm.nih.gov/23325564
https://pubmed.ncbi.nlm.nih.gov/23325564
Autor:
Yiping Du, H. Glenn Reynolds, Xiaohong Joe Zhou, Matt A. Bernstein, Jason A. Polzin, Joseph K. Maier
Publikováno v:
Magnetic resonance in medicine. 39(4)
When a linear magnetic field gradient is used, spatially higher-order magnetic fields are produced to satisfy the Maxwell equations. It has been observed that the higher-order magnetic field produced by the readout gradient causes axial echo planar i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::746ce4f541f40b20faa98ea85d7edc4c
https://pubmed.ncbi.nlm.nih.gov/9543422
https://pubmed.ncbi.nlm.nih.gov/9543422
Autor:
Joseph K. Maier, R. C. Wright, Anna E. Holsinger, Farhad Farzaneh, Roger C. Grimm, Stephen J. Riederer
Publikováno v:
Magnetic resonance in medicine. 14(3)
We describe a system for performing interactive MRI in real time. Using a TR/TE 7.1/3.5 ms sequence, the operator may alter a scan parameter and observe the effects of the alteration on the image within a few hundred milliseconds. With this system, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0eb760654093b0a783eca0ffd55335f4
https://pubmed.ncbi.nlm.nih.gov/2355836
https://pubmed.ncbi.nlm.nih.gov/2355836
Publikováno v:
Magnetic Resonance Imaging. 11:XXVII-XXVIII
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fa6f1914375aec4df399c0f3eb6ffc6
https://doi.org/10.1016/0730-725x(93)90257-e
https://doi.org/10.1016/0730-725x(93)90257-e
Publikováno v:
Radiology. 147:859-862
Temporal filtering methods were applied to iodine signal-to-noise ratio (SNR) restoration in intravenous hybrid subtraction digital subtraction angiography (DSA). For equal detected exposure rates hybrid subtraction had approximately 35% of the SNR o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a744b4ec8aecf6aa8602497470b55dbb
https://doi.org/10.1148/radiology.147.3.6342036
https://doi.org/10.1148/radiology.147.3.6342036
Publikováno v:
Medical Physics. 10:209-217
The technical characteristics of a new digital fluorographic image processing method called matched filtering are presented. This technique, a type of extensive temporal integration, takes a weighted sum of images acquired during passage of a contras
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e31d099453d0fccb480e2de44911dc6
https://doi.org/10.1118/1.595238
https://doi.org/10.1118/1.595238
Publikováno v:
Investigative radiology. 19(5)
Using computer calculations and assumed contrast bolus curves, several aspects of the application of temporal integration methods and matched filtering to intravenous digital subtraction angiography (IV-DSA) were studied. The topics included the impr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::184d71f7dcace7f09854f8f9113b9299
https://pubmed.ncbi.nlm.nih.gov/6392153
https://pubmed.ncbi.nlm.nih.gov/6392153
Publikováno v:
Investigative Radiology. 18:S10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::119f7ffdea5c4370e6a5b43f933bcd9a
https://doi.org/10.1097/00004424-198307000-00062
https://doi.org/10.1097/00004424-198307000-00062