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Virgo™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
www.canamglobal.com/mri/virgomri.html From Millennium Technology Inc. This open C-shaped MRI system eases patient comfort and technologist maneuverability. This low cost scanner is build for a wide range of applications. The Virgo™ patient table is detachable and moves on easy rolling castors. Able to accommodate patient weights up to 160 kg, the tabletop has a range of motion of 30 cm in the lateral direction and 90cm in the longitudinal direction. Images generated with this scanner can only be viewed (without data loss) on Millennium's proprietary viewing software.
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
C shaped
SYNCHRONIZATION
Standard cardiac gating, ECG/peripheral, respiratory gating
PULSE SEQUENCES
2D Spin Echo (single and multi-echo), 2D Inversion Recovery, 2D Sequential and 3D Volume Gradient Echo, 2D and 3D Spoiled Gradient Echo
IMAGING MODES
Localizer, single slice, multislice, volume, fast, POMP, multi slab, cine, slice and frequency zip, extended dynamic range, tailored RF
TR
steps of 1 msec
TE
steps of 1 msec
SINGLE/MULTI SLICE
Simultaneous scan and reconstruction;; 100 images/second reconstruction
400 mm
2D : 2 mm; 3D : 0.5 mm
MEASURING MATRIX
512x512
PIXEL INTENSITY
256 gray levels
MAGNET TYPE
Permanent
BORE DIAMETER
or Vertical Gap
44 cm
STRENGTH
15 mT/m
5-GAUSS FRINGE FIELD
3 m/3 m
Passive
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MRI Resources 
Stimulator pool - Bioinformatics - MRI Training Courses - Open Directory Project - Mobile MRI Rental - Pathology
 
MAGNETOM C™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
www.medical.siemens.com From Siemens Medical Systems;
A new, powerful, compact player in MRI. For both, patients and health care professionals, the mid-field has realized a giant step to cost efficient quality care. Obese patients and people with claustrophobia appreciate the comfortable side loading. The smallest pole diameter - 137 cm (54 inches) allows for optimal patient comfort.
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
C-shaped open MRI
Multi channel imaging, CP Head//Neck Array Coil, Body/Spine Array Coil, large, Transmit Coil
SYNCHRONIZATION
ECG/peripheral: Optional/yes, respiratory gating
PULSE SEQUENCES
SE, FLASH, FISP, IR, FIR, STIR, TrueIR/FISP, FSE, MT, SS-FSE, MT-SE, MTC, MSE, EPI, PSIF
IMAGING MODES
Single, multislice, volume study, multi angle, multi oblique
TR
Min. TR 2.81 ms
TE
Min. TE 0.98 ms
512 x 512 full screen display
MEASURING MATRIX
64 x 64 to 512 x 512
FOV
0.5 - 40 cm
MAGNET TYPE
Permanent
BORE DIAMETER
or W x H
41 cm vertical gap distance
MAGNET WEIGHT
16000 kg
H*W*D
233 x 206 x 160 cm
STRENGTH
24 mT/m
5-GAUSS FRINGE FIELD
2.2 m / 2.2 m
Passive and active
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• View the DATABASE results for 'MAGNETOM C™' (2).Open this link in a new window

 
Further Reading:
  Basics:
Section 2: 510(k) Summary, MAGNETOM C! System Classification Name: Magnetic Resonance Diagnostic(.pdf)
   by www.accessdata.fda.gov    
MRI Resources 
Bioinformatics - Libraries - Fluorescence - Portals - MRI Technician and Technologist Schools - Collections
 
Breast MRIMRI Resource Directory:
 - Breast MRI -
 
(MR mammography) Magnetic resonance imaging of the breast is particularly useful in evaluation of newly diagnosed breast cancer, in women whose breast tissue is mammographically very dense and for screening in women with a high lifetime risk of breast cancer because of their family history or genetic disposition.
Breast MRI can be performed on all standard whole body magnets at a field strength of 0.5 T - 1.5 Tesla. Powerful gradient strengths over 15 mT/m will help to improve the balance between spatial resolution, scanning speed, and volume coverage. The use of a dedicated bilateral breast coil is obligatory.
Malignant lesions release angiogenic factors that increase local vessel density and vessel permeability. Breast cancer is detectable due to the strong enhancement in dynamic breast imaging that peaks early (about 1-2 min.) after contrast medium injection. If breast cancer is suspected, a breast biopsy may be necessary to secure the diagnosis.

See also Magnetic Resonance Imaging MRI, Biopsy and MR Guided Interventions.

Requirements in breast MRI procedures:
•
Both breasts must be measured without gaps.
•
Temporal resolution should be sufficient to allow early imaging after contrast agent with dynamic imaging every 60-120 sec.
•
For the best possible detection of enhancement fat signal should be eliminated either by image subtraction or by spectrally selective fat saturation.
•
Thin slices are necessary to assure absence of partial volume effects.
•
Imaging should be performed with a spatial resolution in plane less than 1 mm.

For Ultrasound Imaging (USI) see Breast Ultrasound at Medical-Ultrasound-Imaging.com.

See also the related poll result: 'MRI will have replaced 50% of x-ray exams by'
 
Images, Movies, Sliders:
 Breast MRI Images T2 And T1  Open this link in a new window
      
 Breast MRI Images T2 And T1 Pre - Post Contrast  Open this link in a new window
 Breast MRI Images T1 Pre - Post Contrast  Open this link in a new window
      
 
Radiology-tip.comradMammography,  Breast Imaging
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Medical-Ultrasound-Imaging.comBreast Ultrasound
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• View the DATABASE results for 'Breast MRI' (13).Open this link in a new window


• View the NEWS results for 'Breast MRI' (41).Open this link in a new window.
 
Further Reading:
  Basics:
New Screening Guidelines for Women at High Risk for Breast Cancer
Wednesday, 26 September 2007   by www.newswise.com    
CONTRAST-ENHANCED MRI OF THE BREAST(.pdf)
MRI Improves Breast Cancer Screening in Older BRCA Carriers
Monday, 5 January 2015   by www.cancernetwork.com    
  News & More:
Technology advances in breast cancer screenings lead to early diagnosis
Friday, 6 October 2023   by ksltv.com    
Are synthetic contrast-enhanced breast MRI images as good as the real thing?
Friday, 18 November 2022   by healthimaging.com    
Abbreviated breast MRI protocols not as cost-effective as promised, new study shows
Wednesday, 20 July 2022   by healthimaging.com    
Deep learning poised to improve breast cancer imaging
Thursday, 24 February 2022   by www.eurekalert.org    
Pre-Operative Breast MRI Can Help Identify Patients Likely to Experience Nipple-Sparing Mastectomy Risks
Wednesday, 7 April 2021   by www.diagnosticimaging.com    
Breast cancer screening recalls: simple MRI measurement could avoid 30% of biopsies
Monday, 1 March 2021   by www.eurekalert.org    
A Comparison of Methods for High-Spatial-Resolution Diffusion-weighted Imaging in Breast MRI
Tuesday, 25 August 2020   by pubs.rsna.org    
Pre-Operative Breast MRI Diagnoses More Cancers in Women with DCIS
Thursday, 9 July 2020   by www.diagnosticimaging.com    
Breast MRI and tumour biology predict axillary lymph node response to neoadjuvant chemotherapy for breast cancer
Thursday, 26 December 2019   by cancerimagingjournal.biomedcentral.com    
Breast MRI Coding Gets an Overhaul in 2019
Wednesday, 9 January 2019   by www.aapc.com    
How accurate are volumetric software programs when compared to breast MRI?
Thursday, 27 July 2017   by www.radiologybusiness.com    
Additional Breast Cancer Tumors Found on MRI After Mammography May Be Larger, More Aggressive
Wednesday, 9 December 2015   by www.oncologynurseadvisor.com    
Preoperative MRI May Overdiagnose Contralateral Breast Cancer
Wednesday, 2 December 2015   by www.cancertherapyadvisor.com    
BI-RADS and breast MRI useful in predicting malignancy
Wednesday, 30 May 2012   by www.oncologynurseadvisor.com    
Searchterm 'Slice Gap' was also found in the following service: 
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3 Dimensional Imaging
 
A technique, which produces a 3 dimensional image of an object. The advantage of this approach is that the signal, acquired from the entire volume has an increased SNR. 'Slices' are defined by a second phase encoded axis, which divides the volume into 'partitions'. There is no gap between the slices in 3D volume imaging, therefore thin slices are possible. The Gz phase encoding gradient is set for several slices in one. But 3D takes more time with thin slices because of this phase encoding gradient. With conventional thin slice imaging, the SNR is poor, with 3D volume imaging this is not the case because the slab (volume) is responsible for SNR.
 
Images, Movies, Sliders:
 Brain MRI Sagittal T1 001  Open this link in a new window
 Axial Knee MRI Images T2 Weighted  Open this link in a new window
 
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• View the DATABASE results for '3 Dimensional Imaging' (5).Open this link in a new window


• View the NEWS results for '3 Dimensional Imaging' (1).Open this link in a new window.
 
Further Reading:
  Basics:
3D-DOCTOR Tutorial
   by www.ablesw.com    
  News & More:
3-D VOLUMETRIC IMAGING FOR STEREOTACTIC LESIONAL AND DEEP BRAIN STIMULATION SURGERY
Innovative 3D-imaging Technique Captures Brain Damage Linked To Alzheimer's Disease
Monday, 29 October 2007   by www.sciencedaily.com    
MRI Resources 
Education - MRI Technician and Technologist Career - Contrast Agents - Patient Information - Cochlear Implant - MRI Technician and Technologist Jobs
 
SlabForum -
related threads
 
Exited measurement volume for 3D imaging. Slices are defined by a second phase encoded axis, which divides the volume into partitions without a gap.
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• View the DATABASE results for 'Slab' (28).Open this link in a new window

MRI Resources 
Quality Advice - Research Labs - Jobs - Case Studies - MRA - Crystallography
 
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MRI is trending to low field magnets :
reduced costs will lead to this change 
AI will close the gap to high field 
only in remote areas 
is only temporary 
never 

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