Imaging plane for arterial spin labeling method.

Slides:

Advertisements

Similar presentations

Images of a 51-year-old woman (patient 8) with generalized tonicoclonic status epilepticus. Images of a 51-year-old woman (patient 8) with generalized.

Advertisements

An example of improving the SNR of arterial spin-labeling MR imaging using deep learning. An example of improving the SNR of arterial spin-labeling MR.

A, Left common carotid angiography (lateral view).

Right carotid angiogram (A) demonstrates a small carotid cave aneurysm in a patient who had an anterior communicating artery aneurysm previously treated.

A and B, Sagittal (A) and axial (B) fast spin-echo images of the cervical spine before treatment demonstrate diffuse increase in signal intensity (arrows)

A and B, The superior sagittal sinus (straight arrow), straight sinus (arrowhead), and vein of Galen (curved arrow) are clearly depicted, and were seen.

Axial CT scans of the brain and neck performed with contrast medium.

Slice no. 5. Slice no. 5. T2-weighted coronal image (20/9.2/12) at the level of the temporal horns (33 weeks' gestation). Large arrow, cingulate sulcus;

A, ROIs that were drawn in the flow territories of the anterior cerebral artery (cortex: ROIs 1 and 2, basal ganglia: ROIs 5 and 6) and the middle cerebral.

Case 19: 14-month-old boy with bilateral frontal and sylvian polymicrogyria. Case 19: 14-month-old boy with bilateral frontal and sylvian polymicrogyria.

Technical implementation of VW-MR imaging.

Contrast-enhanced coronal CT scan of a rabbit.

An example of improving the SNR of arterial spin-labeling MR imaging using deep learning. An example of improving the SNR of arterial spin-labeling MR.

A 22-year-old man with posterior left frontal grade 2 astrocytoma.

A side-by-side comparison of EPVS in a cognitively healthy control versus a patient with aMCI A, A coronal MR brain image of a cognitively healthy control.

Normal schematic diagram of the aortic arch and the great vessels demonstrates the embryologic origins of the arch and its major branches. Normal schematic.

42-year-old male patient with follow-up neck CT for lymphoma at 70 kVp (A) and corresponding previous CT at 120 kVp (B). 42-year-old male patient with.

Scout suture evaluation.

Images from first session with a head coil show suspicion of carotid dissection. Images from first session with a head coil show suspicion of carotid dissection.

T2-weighted images of a patient with an infarction within the anterior MCA branch territory on day 5 (patient 15) show high SI changes within the ipsilateral.

Hypervascular tumor. Hypervascular tumor. Right carotid artery angiogram shows displacement of the branches of the middle cerebral artery. The tumor blush.

Images of a 20-year-old man who was a passenger in a traffic accident in May 1999; he had not been wearing a seat belt. Images of a 20-year-old man who.

A 70-year-old woman with a left middle cerebral artery territory infarct after a coronary angiogram.A, Axial 2.5-mm image from noncontrast brain CT shows.

Involvement of the frontal and parietal lobes in patients with isolated cortical hyperintensities. Involvement of the frontal and parietal lobes in patients.

Optic glioma.A, Sagittal spin-echo image (TR, 643 ms; TE, 12 ms) shows markedly enlarged optic nerve (arrow).B, Axial fast spin-echo (TR, 6000 ms; TE,

T2-weighted, PD-weighted, FLAIR, and DWI images showing cortical abnormalities in the right parietal lobe; FLAIR and DWI also show abnormalities in the.

Half-dose CE-MRV. Half-dose CE-MRV. A and B, Coronal (A) and sagittal (B) full-thickness MIP images (TR/TE, 3.4/1.3 ms; flip angle, 25°) in a 27-year-old.

A, Axial unenhanced CT shows diffuse symmetric subarachnoid hemorrhage

Case 2.A, Right internal carotid artery (ICA) angiogram, oblique view, showing a 4-mm aneurysm at the right middle cerebral artery (MCA) bifurcation.B,

Pial vasodilation. Pial vasodilation. A, Axial GRE T2 image shows a left frontal sulcal SAH (black arrowhead), possibly located in the “watershed” territory.

Endocarditis. Endocarditis. A, Axial brain CT scan shows an isolated slight right frontal subarachnoid hyperattenuation. B, Because of clinical aggravation.

A, A sagittal fat-saturated T2-weighted image demonstrates increased signal intensity (arrow) in the superior endplate from an acute compression fracture.

Four-point subjective rating scale of the perihippocampal fissures (PHF).A and B, Axial and coronal view of same case. Four-point subjective rating scale.

Four more examples of missed additional aneurysms on DSA

Case 21: 7-year-old girl with bilateral perisylvian, lateral parietal, and parieto-occipital polymicrogyria. Case 21: 7-year-old girl with bilateral perisylvian,

Representative multislice MIP projections of EPVS in the subcortical brain structures and the basal ganglia of a control and a subject with aMCI. Representative.

Anteroposterior (A and C) and lateral (B and C) images from a left internal carotid artery angiogram obtained during the early (A and B) and delayed angiographic.

MR spectrum of a normal frontal lobe obtained at 1

A–C, Sagittal T1-weighted (A), sagittal T2-weighted (B), and axial T2-weighted (C) MR images of the cervical spine in a patient with severe myelopathy.

Coronal postcontrast T1-weighted image of the orbits in patient 1 demonstrates a heterogeneously enhancing ovoid lesion involving the right medial rectus.

Simplified examples of different measurements.

Bone algorithm CT images from the same case, demonstrating focal enlargement of the right tympanic segment, in the axial (left) and coronal (right) planes.

A 34-year-old woman with SLE with APS

Patient with a 6-mm aneurysm of the AcomA that was treated with GDCs

Sagittal T1-weighted MR image of the pituitary gland in a term neonate (born at gestational week 38) obtained near term (corrected age of 39 weeks; 7 days.

Z-score brain surface map represents areas of metabolic reduction in patients in comparison with healthy subjects (data base group). Z-score brain surface.

A, Inappropriate venous region-of-interest selection resulting in the CBV appearance mimicking global hypoperfusion. A, Inappropriate venous region-of-interest.

External carotid angiogram, lateral view, with midarterial (A) and capillary (B) phase, shows the rich vascularity of the tumor. External carotid angiogram,

Left carotid artery angiograms demonstrate the persistent otic artery (a), the basilar artery (b), the fetal posterior cerebral artery (PCA) (c), the ACoA.

Saccular macula. Saccular macula. Axial (A and B), coronal (C and D), oblique sagittal (Poschl plane) (E and F), and oblique coronal (Stenvers plane) (G.

Sagittal MPRAGE (A) and axial T2-weighted (B) images demonstrate extensive focal cortical dysplasia (arrow) involving most of the visualized left frontal.

Case 1: 54-year-old man with atrial fibrillation and sudden onset of left-sided hemiparesis. Case 1: 54-year-old man with atrial fibrillation and sudden.

Schematic (A) and radiographic measurement (B) of pelvic incidence: an angle between a line drawn perpendicular to the middle of the superior sacral endplate.

Sagittal MDCT image of the craniocervical junction demonstrates the AOI, which is calculated by drawing a line perpendicular to the articular surfaces.

Case 25. Case 25. This patient presented with a decreased level of consciousness and was treated with intra-arterial nimodipine for symptomatic cerebral.

Detection of aneurysmal neck remnant

Plot of the regional homogeneity index among the CID-NI, CID-MCI, and NC groups in the identified brain regions (voxels at least 60, P < .001). a, The.

Z-score brain surface map of representative cases shows a prominent metabolic reduction on respective gyrus level segment in cingulate gyrus.Top, 46-year-old.

A, Axial T2-weighted image reveals thickening of the cortical gray matter at the medial aspect of both frontal lobes, compatible with bifrontal cortical.

Tubulo-nodular type. Tubulo-nodular type. Fetal MR images (case 4). A, Mid-sagittal view turbo spin-echo T1-weighted sequence (400/17/1) shows typical.

FIG 4. Plots of the Loes scores, based on double-echo spin-echo MR images, obtained at different follow-up examinations for 22 patients with ALD. The T1-weighted.

A 75-year-old man with a left brachial zoster-associated plexopathy.

Case 3.A, CT angiography revealing bilateral asymptomatic middle cerebral artery (MCA) bifurcation aneurysms and an additional aneurysm at the left distal.

Visible atrophic changes after moderate TBI

A 42-year-old woman with a right parietal hematoma.

Tilted head position for intracranial CT angiography in a patient who has undergone clipping of a single aneurysm. Tilted head position for intracranial.

Axial contrast-enhanced CT (A) and sagittal contrast-enhanced reformatted (B) images reveal a well-defined ovoid mass with homogeneous intense enhancement.

Sagittal scout view sequences are used as localizers to select the anatomic levels for flow quantification. Sagittal scout view sequences are used as localizers.

Highly specific connections between the cortical lobe and thalamus.

Illustration of the point-counting technique applied to estimate hippocampal volume from MR images of a control (C, top row), patient with left-sided seizure.

Presentation transcript:

Imaging plane for arterial spin labeling method. Imaging plane for arterial spin labeling method. We used three imaging planes: plane A, sagittal plane; plane B, 10-degree laterally tilted sagittal plane; plane C, 20-degree laterally tilted sagittal plane. All three imaging planes included the internal carotid artery top. ACA is located on the medial side of the imaging plane, and MCA is located on the lateral side. In the frontal lobe, plane A includes the superior frontal gyrus and plane C includes the middle frontal gyrus. Plane B is located around the superior frontal sulcus in most cases. Toshiaki Taoka et al. AJNR Am J Neuroradiol 2004;25:248-251 ©2004 by American Society of Neuroradiology