Associations Between Doppler Internal Jugular Vein Blood Flow and Transverse Sinus Stasis Detected by Magnetic Resonance Imaging

2020 ◽  
Author(s):  
Zeki İlhan ◽  
Saim Açıkgözoğlu ◽  
Orhan Demir
Keyword(s):  
Magnetic Resonance Imaging ◽  
Blood Flow ◽  
Magnetic Resonance ◽  
Internal Jugular Vein ◽  
Jugular Vein ◽  
Transverse Sinus ◽  
Resonance Imaging

Reduced blood flow in the transverse sinus visualized by ultra low field magnetic resonance imaging

1989 ◽  
Vol 7 (1) ◽  
pp. 101-104 ◽  
Author(s):  
L-O. Wahlund ◽  
J. Sääf ◽  
Y. Freund ◽  
O. Marions ◽  
U. Rudberg
Keyword(s):  
Magnetic Resonance Imaging ◽  
Blood Flow ◽  
Magnetic Resonance ◽  
Transverse Sinus ◽  
Resonance Imaging ◽  
Low Field

scholarly journals Congenital Agenesis of the Internal Jugular Vein: An Extremely Rare Anomaly

2015 ◽  
Vol 2015 ◽  
pp. 1-3 ◽  
Author(s):  
Oguz Kayiran ◽  
Caglar Calli ◽  
Abdulkadir Emre ◽  
Fatih Kemal Soy
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Internal Jugular Vein ◽  
Jugular Vein ◽  
Neck Surgery ◽  
Venous Access ◽  
Left Internal Jugular Vein ◽  
Resonance Imaging ◽  
Cervical Mass ◽  
Asymptomatic Case

Vascular anomalies of major venous vessels are rarely seen. Moreover, congenital absence of internal jugular vein is extremely uncommon. In our case, a female patient presented with primary unknown left cervical mass. Cervical ultrasonography demonstrated absence of right internal jugular vein. In addition, computed tomography and dynamic magnetic resonance imaging scans confirmed this diagnosis. Compensatory left internal jugular vein enlargement mimicked sort of cervical mass. Venous magnetic resonance imaging images revealed the absence of right internal jugular vein with compensatory left internal jugular vein dominance. In the literature, the agenesis of IJV was mentioned in a case with concomitant multiple problems. Here, an asymptomatic case is reported with an incident diagnosis. No interventions were planned upon the patient's request. It should be kept in mind that any kind of anomalies can be seen during venous access and neck surgery.

Functional Magnetic Resonance Imaging Measures of Blood Flow Patterns in the Human Auditory Cortex in Response to Sound

1998 ◽  
Vol 41 (3) ◽  
pp. 538-548 ◽  
Author(s):  
Sean C. Huckins ◽  
Christopher W. Turner ◽  
Karen A. Doherty ◽  
Michael M. Fonte ◽  
Nikolaus M. Szeverenyi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Blood Flow ◽  
Magnetic Resonance ◽  
Functional Magnetic Resonance Imaging ◽  
Functional Magnetic Resonance ◽  
Resonance Imaging ◽  
Speech Stimuli ◽  
Complex Stimuli ◽  
Scanning Session ◽  
Auditory Research

Functional Magnetic Resonance Imaging (fMRI) holds exciting potential as a research and clinical tool for exploring the human auditory system. This noninvasive technique allows the measurement of discrete changes in cerebral cortical blood flow in response to sensory stimuli, allowing determination of precise neuroanatomical locations of the underlying brain parenchymal activity. Application of fMRI in auditory research, however, has been limited. One problem is that fMRI utilizing echo-planar imaging technology (EPI) generates intense noise that could potentially affect the results of auditory experiments. Also, issues relating to the reliability of fMRI for listeners with normal hearing need to be resolved before this technique can be used to study listeners with hearing loss. This preliminary study examines the feasibility of using fMRI in auditory research by performing a simple set of experiments to test the reliability of scanning parameters that use a high resolution and high signal-to-noise ratio unlike that presently reported in the literature. We used consonant-vowel (CV) speech stimuli to investigate whether or not we could observe reproducible and consistent changes in cortical blood flow in listeners during a single scanning session, across more than one scanning session, and in more than one listener. In addition, we wanted to determine if there were differences between CV speech and nonspeech complex stimuli across listeners. Our study shows reproducibility within and across listeners for CV speech stimuli. Results were reproducible for CV speech stimuli within fMRI scanning sessions for 5 out of 9 listeners and were reproducible for 6 out of 8 listeners across fMRI scanning sessions. Results of nonspeech complex stimuli across listeners showed activity in 4 out of 9 individuals tested.

A case of prenatal diagnosis of corpus callosum lipoma

2020 ◽  
Author(s):  
A.I. Zamiatina, M.V. Medvedev
Keyword(s):  
Magnetic Resonance Imaging ◽  
Blood Flow ◽  
Prenatal Diagnosis ◽  
Magnetic Resonance ◽  
Corpus Callosum ◽  
Color Doppler ◽  
Septum Pellucidum ◽  
Resonance Imaging

A case of prenatal diagnosis of the corpus callosum lipoma at 32–33 weeks of gestation is presented. In a consultative examination, a hyperechoic formation with clear contours was found in the projection of the septum pellucidum, occupying the rostrum, genu, and truncus of corpus callosum, without signs of intratumorally blood flow in the color Doppler mapping mode. The prenatal diagnosis of "callosum lipoma" was established, confirmed after the birth of a child during magnetic resonance imaging.

Bias and Precision in Magnetic Resonance Imaging‐Based Estimates of Renal Blood Flow: Assessment by Triangulation

2021 ◽  
Author(s):  
Bashair A. Alhummiany ◽  
David Shelley ◽  
Margaret Saysell ◽  
Maria‐Alexandra Olaru ◽  
Bernd Kühn ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Blood Flow ◽  
Magnetic Resonance ◽  
Renal Blood Flow ◽  
Resonance Imaging
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