Vascular Morphology and Function in Magnetic Resonance Imaging

1989 ◽  
pp. 83-110
Author(s):  
Gustav Konrad von Schulthess
Circulation ◽  
1996 ◽  
Vol 93 (4) ◽  
pp. 660-666 ◽  
Author(s):  
Michel A. Galjee ◽  
Albert C. van Rossum ◽  
Teddo Doesburg ◽  
Machiel J. van Eenige ◽  
Cees A. Visser

1994 ◽  
Vol 26 (Supplement) ◽  
pp. S103
Author(s):  
B. M. Pluim ◽  
E. E. van der Wall ◽  
A. de Roos ◽  
H. J. Siebelink ◽  
J. C. Chin ◽  
...  

2018 ◽  
Vol 15 (suppl_1) ◽  
pp. S436-S443 ◽  
Author(s):  
Andrew K Conner ◽  
Robert G Briggs ◽  
Goksel Sali ◽  
Meherzad Rahimi ◽  
Cordell M Baker ◽  
...  

ABSTRACT The inferior fronto-occipital fasciculus (IFOF) is a large white matter tract of the human cerebrum with functional connectivity associated with semantic language processing and goal-oriented behavior. However, little is known regarding the overall connectivity of this tract. Recently, the Human Connectome Project parcellated the human cortex into 180 distinct regions. In our other work, we have shown these various regions in relation to clinically applicable anatomy and function. Utilizing Diffusion Spectrum Magnetic Resonance Imaging tractography coupled with the human cortex parcellation data presented earlier in this supplement, we aim to describe the macro-connectome of the IFOF in relation to the linked parcellations present within the human cortex. The purpose of this study is to present this information in an indexed, illustrated, and tractographically aided series of figures and tables for anatomic and clinical reference.


2017 ◽  
Vol 37 (1) ◽  
pp. 111-115 ◽  
Author(s):  
Claire Grant ◽  
Laura Harrison ◽  
Caroline Hoad ◽  
Luca Marciani ◽  
Eleanor Cox ◽  
...  

Endotoxemia is common in advanced chronic kidney disease and is particularly severe in those receiving dialysis. In hemodialysis patients, translocation from the bowel occurs as a consequence of recurrent circulatory stress leading to a reduction in circulating splanchnic volume and increased intestinal permeability. Peritoneal dialysis (PD) patients are often volume expanded and have continuous direct immersion of bowel in fluid; these may also be important factors in endotoxin translocation and would suggest different therapeutic strategies to improve it. The mechanisms leading to endotoxemia have never been specifically studied in PD. In this study, 17 subjects (8 PD patients, 9 healthy controls) underwent detailed gastrointestinal and cardiac magnetic resonance imaging during fasted and fed states. Gross splanchnic perfusion was assessed by quantification of superior mesenteric artery flow. Magnetic resonance imaging findings were correlated to endotoxemia, markers of hydration status and cardiac structure and function.


2019 ◽  
Vol 46 (1) ◽  
pp. 202-210 ◽  
Author(s):  
Dusan Hirjak ◽  
Mahmoud Rashidi ◽  
Katharina M Kubera ◽  
Georg Northoff ◽  
Stefan Fritze ◽  
...  

Abstract Catatonia is a nosologically unspecific syndrome, which subsumes a plethora of mostly complex affective, motor, and behavioral phenomena. Although catatonia frequently occurs in schizophrenia spectrum disorders (SSD), specific patterns of abnormal brain structure and function underlying catatonia are unclear at present. Here, we used a multivariate data fusion technique for multimodal magnetic resonance imaging (MRI) data to investigate patterns of aberrant intrinsic neural activity (INA) and gray matter volume (GMV) in SSD patients with and without catatonia. Resting-state functional MRI and structural MRI data were collected from 87 right-handed SSD patients. Catatonic symptoms were examined on the Northoff Catatonia Rating Scale (NCRS). A multivariate analysis approach was used to examine co-altered patterns of INA and GMV. Following a categorical approach, we found predominantly frontothalamic and corticostriatal abnormalities in SSD patients with catatonia (NCRS total score ≥ 3; n = 24) when compared to SSD patients without catatonia (NCRS total score = 0; n = 22) matched for age, gender, education, and medication. Corticostriatal network was associated with NCRS affective scores. Following a dimensional approach, 33 SSD patients with catatonia according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision were identified. NCRS behavioral scores were associated with a joint structural and functional system that predominantly included cerebellar and prefrontal/cortical motor regions. NCRS affective scores were associated with frontoparietal INA. This study provides novel neuromechanistic insights into catatonia in SSD suggesting co-altered structure/function-interactions in neural systems subserving coordinated visuospatial functions and motor behavior.


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