Tải bản đầy đủ (.ppt) (67 trang)

neusoft presentacion mr

Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (2.8 MB, 67 trang )

NEUSOFT NSM-P035

Super Open
Magnetic Resonance Imaging
System


Outline
 MRI Introduction
–principles

features
applications 、 development trend



clinical

 Features of NEUSOFT MRI NSM-P035
–hardware 、 magnet 、 RF 、 gradient 、 computer
–software 、 imaging technology 、 technical
specifications 、 sequence 、 operating interface


Principles of MRI
 Nuclear magnetic
resonance phenomenon

 Hydrogen nucleus
—proton



Principles of MRI

 Spin and Magnetic Moment


Principles of MRI

 Magnetization

 Proton Precession


Principles of MRI

 Resonance

 Relaxation


Principles of MRI

 MR Signal


Features of MRI
 Non-invasive
examination

 Multi-type of images

 High image contrast
 Slicing at any orientation
 No contrast agent
required in MRA


Features of MRI

Non-invasive examination
 CT 、 X-ray 、 Nuclear medicine– ionizing radiation
 Radiation energy of MRI is 1/1012 that of X-ray system
 No definite trauma has been certified since more than 20

years clinical application
 Pregnant woman can be inspected by MRI, not CT
 MRI interventional therapeutic procedure 、 no trauma to

doctor and patient


Multi-type of images

Features of MRI

 To get more diagnosis information by comparing various
images

 To improve detectable rate and accuracy of clinical diagnosis

T1 weighted


T2
weighted

Water
suppre
ssion

IR T1
weighted

IR T2
weighted


Features of MRI

High Image Contrast
 Water
 Fat
 Protein
 Skeleton
 Gas


Features of MRI

 Slicing at any orientation



Features of MRI

No Contract Agent Need in MRA

 In-flow and out-flow
effect

 TOF
 PC


MRI Clinical Applications
MRI Diagnose Advantage Parts

Nervous system
 Spine 、 extremity
 Muscle 、 convective tissue
 Angiography system
 Pelvis
 Substantive organs


MRI Clinical Applications

 Head

 Brain Stem Infarct

Coronal
T2


Coronal FLAIR


MRI Clinical Applications

 Pituitary Tumor

Arrow
T1

Coronal
T1


MRI Clinical Applications

 Spine and Spinal Cord


MRI Clinical Applications

 Spinal Cord Malacosis

Sagittal T1

Sagittal T2


MRI Clinical Applications


 Lung Cancer Lumber Transfer

Axial T1

Sagittal T2


MRI Clinical Applications

 Extremity 、 Joint


MRI Clinical Applications

 Abdomen

Angioma of L
iver


MRI Clinical Applications

 Pelvis


MRI Clinical Applications

 Breast



MRI Clinical Applications

Strongpoint of MRI Imaging
 No trauma——meet for patient requirement for health care
 More detectable rate——decrease misdiagnosis
 More accurate diagnosis
-- reduce wrong diagnosis

 More quantitive information
–Increase estimation prognosis accuracy
–Assist making better therapy plan

 More impersonality evidence——decrease law risk


MRI Development Trend

 MRI Market Status
 High field
more than 1.5T

 Permanent magnet open

30 、
70 、

 Medium field quits basically from market



Tài liệu bạn tìm kiếm đã sẵn sàng tải về

Tải bản đầy đủ ngay
×