Presentation is loading. Please wait.

Presentation is loading. Please wait.

Technical implementation of VW-MR imaging.

Published byWilliam Douglas Modified over 5 years ago

Similar presentations

Presentation on theme: "Technical implementation of VW-MR imaging."— Presentation transcript:

1 Technical implementation of VW-MR imaging.
Technical implementation of VW-MR imaging. Comparison of a coronal 2D T1-weighted FLAIR VW-MR imaging sequence (A) and a 3D proton-density–weighted variable flip angle refocusing pulse, fast spin-echo VW-MR imaging sequence (B) in a healthy subject. Insets show magnified images of the carotid terminations with arrows pointing to the arterial wall. Comparison of a standard contrast-enhanced T1-weighted spin-echo sequence (C) and an optimized contrast-enhanced T1-weighted VW-MR imaging sequence (D) shows how blood suppression is needed to reveal an enhancing atherosclerotic plaque (arrow) in the left MCA M1 segment. D.M. Mandell et al. AJNR Am J Neuroradiol 2017;38: ©2017 by American Society of Neuroradiology

Download ppt "Technical implementation of VW-MR imaging."

Similar presentations

Color pressure maps (mm Hg) in a healthy subject in the axial (A) and coronal (D) planes as well as for a patient (C and F) with a type IIa DAVF affecting.

Color pressure maps (mm Hg) in a healthy subject in the axial (A) and coronal (D) planes as well as for a patient (C and F) with a type IIa DAVF affecting.
Axial T1-weighted image after contrast administration (A) and a FLAIR image (B) demonstrating a left parietal subcortical DVA with deep venous drainage.

Axial T1-weighted image after contrast administration (A) and a FLAIR image (B) demonstrating a left parietal subcortical DVA with deep venous drainage.
Precontrast coronal T1-weighted view shows metastatic nodules (long arrows) from breast cancer in the vicinity of the left BPL and another metastatic mass.

Precontrast coronal T1-weighted view shows metastatic nodules (long arrows) from breast cancer in the vicinity of the left BPL and another metastatic mass.
Axial source images of left severe ICA stenosis; small residual lumen with vessel wall plaque and thick calcification on the sides. Axial source images.

Axial source images of left severe ICA stenosis; small residual lumen with vessel wall plaque and thick calcification on the sides. Axial source images.
Two axial images from the same case of a facial nerve schwannoma involving the right mastoid segment of the facial nerve canal. Two axial images from the.

Two axial images from the same case of a facial nerve schwannoma involving the right mastoid segment of the facial nerve canal. Two axial images from the.
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, Sagittal (A) and axial (B) fast spin-echo images of the cervical spine before treatment demonstrate diffuse increase in signal intensity (arrows)
Sample source images (MT-weighted [MT-w], reference without saturation, T1-weighted [T1-w], and proton density–weighted [PD-w]) and a reconstructed MPF.

Sample source images (MT-weighted [MT-w], reference without saturation, T1-weighted [T1-w], and proton density–weighted [PD-w]) and a reconstructed MPF.
Images from the case of a 3-month-old triplet with worsening congestive heart failure.A, Volume-rendered MR angiogram shows, from an inferior prospective,

Images from the case of a 3-month-old triplet with worsening congestive heart failure.A, Volume-rendered MR angiogram shows, from an inferior prospective,
Image shows appearance of septum within dural sinus in a 68-year-old woman with normal results of an MR imaging examination. Image shows appearance of.

Image shows appearance of septum within dural sinus in a 68-year-old woman with normal results of an MR imaging examination. Image shows appearance of.
VW-MR imaging to differentiate among causes of intracranial arterial stenosis when angiography findings are inconclusive. VW-MR imaging to differentiate.

VW-MR imaging to differentiate among causes of intracranial arterial stenosis when angiography findings are inconclusive. VW-MR imaging to differentiate.
Two coronal views of the same case, demonstrating the aggressive appearing imaging features of mastoid segment FNSs. The left coronal T1-weighted postcontrast-enhanced.

Two coronal views of the same case, demonstrating the aggressive appearing imaging features of mastoid segment FNSs. The left coronal T1-weighted postcontrast-enhanced.
A–D, MR images of an 83-year-old man who was diagnosed with osteonecrosis at the L1 vertebral body. A–D, MR images of an 83-year-old man who was diagnosed.

A–D, MR images of an 83-year-old man who was diagnosed with osteonecrosis at the L1 vertebral body. A–D, MR images of an 83-year-old man who was diagnosed.
Deficient cochlear nerve in a 60-year-old patient with a 50-year history of left hearing loss after a motor vehicle accident (patient A10). Deficient cochlear.

Deficient cochlear nerve in a 60-year-old patient with a 50-year history of left hearing loss after a motor vehicle accident (patient A10). Deficient cochlear.
A, Measurement of the angle between the TS-OP line and the hard palate in the lateral scout view of the brain CT (black arrow). A, Measurement of the angle.

A, Measurement of the angle between the TS-OP line and the hard palate in the lateral scout view of the brain CT (black arrow). A, Measurement of the angle.
The case of a 64-year-old man with histologically confirmed pituitary adenoma without evidence of hemorrhage or infarction.A, Coronal spin-echo T1-weighted.

The case of a 64-year-old man with histologically confirmed pituitary adenoma without evidence of hemorrhage or infarction.A, Coronal spin-echo T1-weighted.
Common VW-MR imaging pitfalls.

Common VW-MR imaging pitfalls.
VW-MR imaging to diagnose intracranial arterial dissection with minimal luminal narrowing. VW-MR imaging to diagnose intracranial arterial dissection with.

VW-MR imaging to diagnose intracranial arterial dissection with minimal luminal narrowing. VW-MR imaging to diagnose intracranial arterial dissection with.
A, Axial source image from a contrast-enhanced MRA unambiguously demonstrates a tiny (

A, Axial source image from a contrast-enhanced MRA unambiguously demonstrates a tiny (
VW-MR imaging to identify symptomatic, nonstenotic intracranial atherosclerotic plaque. VW-MR imaging to identify symptomatic, nonstenotic intracranial.

VW-MR imaging to identify symptomatic, nonstenotic intracranial atherosclerotic plaque. VW-MR imaging to identify symptomatic, nonstenotic intracranial.
Contrast-enhanced coronal CT scan of a rabbit.

Contrast-enhanced coronal CT scan of a rabbit.

Similar presentations

Ads by Google