Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Merrill P. Spencer"'
Autor:
Jill T. Jesurum, Meryl Harley, Mark A. Moehring, Merrill P. Spencer, Cindy J. Fuller, Joshua Renz
Publikováno v:
Journal of Neuroimaging. 19:235-241
BACKGROUND AND PURPOSE Comparison was performed between unilateral and bilateral power M-mode transcranial Doppler to detect right-to-left circulatory shunt (RLS). METHODS Recorded Doppler data from 87 patients with confirmed RLS referred for transca
Autor:
Merrill P. Spencer, John V. Olsen, Cindy J. Fuller, Mark Reisman, William A. Gray, Kimberly A. Krabill, William Likosky, Jill T. Jesurum, Carles A. Velez
Publikováno v:
The Journal of Headache and Pain
The objective of the study was to assess differences in proportion of large right-to-left shunt (RLS) and atrial septal characteristics between migraineurs and non-migraineurs referred for transcatheter closure of patent foramen ovale (PF0). This ret
Autor:
Merrill P. Spencer, Mark A. Moehring, Jill Jesurum, William A. Gray, John V. Olsen, Mark Reisman
Publikováno v:
Journal of Neuroimaging. 14:342-349
Autor:
Merrill P. Spencer, Mark A. Moehring
Publikováno v:
Ultrasound in Medicine & Biology. 28:49-57
Difficulties in location of transcranial ultrasound (US) windows and blood flow in cerebral vessels, and unambiguous detection of microemboli, have limited expansion of transcranial Doppler US. We developed a new transcranial Doppler modality, power
Autor:
Merrill P. Spencer
Publikováno v:
Stroke. 30:1286-1295
Background and Purpose —Accurate carotid Doppler examination is an important issue in the light of large endarterectomy trials, but recommended cutoff values for detection of >70% stenosis vary widely. Standardization of diagnostic criteria should
Autor:
Merrill P. Spencer
Publikováno v:
Echocardiography. 13:551-554
BACKGROUND: Finding the pathological meaning of Doppler microembolic signals is important to developing the clinical applications of this new technology. METHODS: Two hundred eighty-four plaques, removed at carotid endarterectomy, were examined by th
Publikováno v:
Stroke. 23:1439-1445
Many patient monitoring techniques have been used for detecting cerebral hypoperfusion during carotid endarterectomy. We compared middle cerebral artery blood flow velocities with carotid artery stump pressures to evaluate the indications for common
Autor:
Joshua Renz, Merrill P. Spencer, Cindy J. Fuller, Mark Reisman, Kimberly A. Krabill, Jill T. Jesurum
Publikováno v:
JACC. Cardiovascular interventions. 2(6)
Objectives We sought to assess the prevalence of secondary right-to-left circulatory shunt (RLS) in patients undergoing transcatheter closure of patent foramen ovale (PFO) as detected by power M-mode transcranial Doppler (TCD) and intracardiac echoca
Publikováno v:
Stroke. 38(6)
Background and Purpose— We hypothesized that direct cervical investigation with Power M-Mode Doppler (PMD) combined with single-gate Doppler spectral analysis (SGDSA) using a 2-MHz pulsed-wave Doppler transducer would show reasonable accuracy param
Autor:
Mark Reisman, Merrill P. Spencer, John V. Olsen, Cindy J. Fuller, Jill T. Jesurum, Verna Harms, William A. Gray, Kimberly A. Krabill
Publikováno v:
The American journal of cardiology. 99(9)
The purpose of the present study was to assess clinical outcomes and closure status after the transcatheter closure of patent foramen ovale. Two hundred thirty-seven consecutive patients (mean age 53 +/- 15 years; 48% men) who underwent patent forame