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Result : Searchterm 'Dynamic Scan' found in 1 term [] and 2 definitions [], (+ 16 Boolean[] results
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Dynamic Scanning
 
Fast gradient echo sequences are used to study dynamic processes with time periods on the order of a second and allow continuous monitoring of most physiologic motions. A common use of dynamic scanning is the investigation of the time course of tissue contrast after injection of a paramagnetic contrast agent.
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• View the NEWS results for 'Dynamic Scanning' (1).Open this link in a new window.
 
Further Reading:
  News & More:
Static and Dynamic Magnetic Resonance Imaging in Female Pelvic Floor Dysfunction: Correlation With Pelvic Organ Prolapse Quantification
Sunday, 10 September 2023   by www.cureus.com    
RSNA: Three Time-Point, Dynamic, Contrast-Enhanced Magnetic Resonance Imaging Can Help Rule Out Prostate Cancer
Tuesday, 2 December 2003   by www.docguide.com    
Deep dive into the use of dynamic MRI for pelvic organ prolapse
Wednesday, 15 June 2022   by www.contemporaryobgyn.net    
4D-Fueled AI with DCE-MRI Improves Breast Lesion Characterization
Friday, 26 February 2021   by www.diagnosticimaging.com    
Evaluating the Relationship Between Dynamic Contrast-Enhanced MRI (DCE-MRI) Parameters and Pathological Characteristics in Breast Cancer
Thursday, 11 June 2020   by www.docwirenews.com    
The Effects of Breathing Motion on DCE-MRI Images: Phantom Studies Simulating Respiratory Motion to Compare CAIPIRINHA-VIBE, Radial-VIBE, and Conventional VIBE
Tuesday, 7 February 2017   by www.kjronline.org    
Optimal k-Space Sampling for Dynamic Contrast-Enhanced MRI with an Application to MR Renography
Thursday, 5 November 2009   by www.ncbi.nlm.nih.gov    
MRI Scans May Improve PCa Recurrence at Low PSA Levels
Tuesday, 3 May 2011   by www.renalandurologynews.com    
Average arterial input function for quantitative dynamic contrast enhanced magnetic resonance imaging of neck nodal metastases
Tuesday, 7 April 2009   by 7thspace.com    
MRI Resources 
Mobile MRI - Databases - Claustrophobia - Process Analysis - MRI Technician and Technologist Career - Shielding
 
Contrast Enhanced MRIInfoSheet: - Contrast Agents - 
Intro, Overview, 
Characteristics, 
Types of, 
etc.MRI Resource Directory:
 - Contrast Enhanced MRI -
 
Contrast enhanced MRI is a commonly used procedure in magnetic resonance imaging. The need to more accurately characterize different types of lesions and to detect all malignant lesions is the main reason for the use of intravenous contrast agents.
Some methods are available to improve the contrast of different tissues. The focus of dynamic contrast enhanced MRI (DCE-MRI) is on contrast kinetics with demands for spatial resolution dependent on the application. DCE-MR imaging is used for diagnosis of cancer (see also liver imaging, abdominal imaging, breast MRI, dynamic scanning) as well as for diagnosis of cardiac infarction (see perfusion imaging, cardiac MRI). Quantitative DCE-MRI requires special data acquisition techniques and analysis software.
Contrast enhanced magnetic resonance angiography (CE-MRA) allows the visualization of vessels and the temporal resolution provides a separation of arteries and veins. These methods share the need for acquisition methods with high temporal and spatial resolution.
Double contrast administration (combined contrast enhanced (CCE) MRI) uses two contrast agents with complementary mechanisms e.g., superparamagnetic iron oxide to darken the background liver and gadolinium to brighten the vessels. A variety of different categories of contrast agents are currently available for clinical use.
Reasons for the use of contrast agents in MRI scans are:
Relaxation characteristics of normal and pathologic tissues are not always different enough to produce obvious differences in signal intensity.
Pathology that is sometimes occult on unenhanced images becomes obvious in the presence of contrast.
Enhancement significantly increases MRI sensitivity.
In addition to improving delineation between normal and abnormal tissues, the pattern of contrast enhancement can improve diagnostic specificity by facilitating characterization of the lesion(s) in question.
Contrast can yield physiologic and functional information in addition to lesion delineation.
Imaging of arteries and veins with contrast enhanced angiography (CE MRA).

Common Indications:
Brain MRI : Preoperative/pretreatment evaluation and postoperative evaluation of brain tumor therapy, CNS infections, noninfectious inflammatory disease and meningeal disease.
Spine MRI : Infection/inflammatory disease, primary tumors, drop metastases, initial evaluation of syrinx, postoperative evaluation of the lumbar spine: disk vs. scar.
Breast MRI : Detection of breast cancer in case of dense breasts, implants, malignant lymph nodes, or scarring after treatment for breast cancer, diagnosis of a suspicious breast lesion in order to avoid biopsy.

For Ultrasound Imaging (USI) see Contrast Enhanced Ultrasound at Medical-Ultrasound-Imaging.com. See also Blood Pool Agents, Myocardial Late Enhancement, Cardiovascular Imaging, Contrast Enhanced MR Venography, Contrast Resolution, Dynamic Scanning, Lung Imaging, Hepatobiliary Contrast Agents, Contrast Medium and MRI Guided Biopsy.
 
Images, Movies, Sliders:
 Delayed Myocardial Contrast Enhancement from Infarct  Open this link in a new window
      

Courtesy of  Robert R. Edelman
 Left Circumflex Ischemia First-pass Contrast Enhancement  Open this link in a new window
      

Courtesy of  Robert R. Edelman

 Normal Lung Gd Perfusion MRI  Open this link in a new window
 MRI of the Brain Stem with Temoral Bone and Auditory System  Open this link in a new window
    
SlidersSliders Overview

 Breast MRI Images T1 Pre - Post Contrast  Open this link in a new window
 
Radiology-tip.comradContrast Enhanced Computed Tomography
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Medical-Ultrasound-Imaging.comContrast Enhanced Ultrasound,  Contrast Enhanced Doppler Imaging
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• View the NEWS results for 'Contrast Enhanced MRI' (8).Open this link in a new window.
 
Further Reading:
  Basics:
Optimal k-Space Sampling for Dynamic Contrast-Enhanced MRI with an Application to MR Renography
Thursday, 5 November 2009   by www.ncbi.nlm.nih.gov    
  News & More:
FDA Approves Gadopiclenol for Contrast-Enhanced Magnetic Resonance Imaging
Tuesday, 27 September 2022   by www.pharmacytimes.com    
Effect of gadolinium-based contrast agent on breast diffusion-tensor imaging
Thursday, 6 August 2020   by www.eurekalert.org    
Artificial Intelligence Processes Provide Solutions to Gadolinium Retention Concerns
Thursday, 30 January 2020   by www.itnonline.com    
Accuracy of Unenhanced MRI in the Detection of New Brain Lesions in Multiple Sclerosis
Tuesday, 12 March 2019   by pubs.rsna.org    
The Effects of Breathing Motion on DCE-MRI Images: Phantom Studies Simulating Respiratory Motion to Compare CAIPIRINHA-VIBE, Radial-VIBE, and Conventional VIBE
Tuesday, 7 February 2017   by www.kjronline.org    
Novel Imaging Technique Improves Prostate Cancer Detection
Tuesday, 6 January 2015   by health.ucsd.edu    
New oxygen-enhanced MRI scan 'helps identify most dangerous tumours'
Thursday, 10 December 2015   by www.dailymail.co.uk    
All-organic MRI Contrast Agent Tested In Mice
Monday, 24 September 2012   by cen.acs.org    
A groundbreaking new graphene-based MRI contrast agent
Friday, 8 June 2012   by www.nanowerk.com    
MRI Resources 
Calculation - Functional MRI - Image Quality - MR Guided Interventions - Cochlear Implant - Blood Flow Imaging
 
Primovist™InfoSheet: - Contrast Agents - 
Intro, Overview, 
Characteristics, 
Types of, 
etc.MRI Resource Directory:
 - Contrast Agents -
 
Primovist™ (U.S brand name Eovist®) is a highly specific MRI contrast agent for the imaging, detection and characterization of liver conditions, including liver tumors, cysts, as well as other malignant and benign lesions. It is a water-soluble ethoxybenzyl derivative of Gd-DTPA. This compound is taken up by the hepatocytes (approximately 30% of the dose goes to the hepatocytes) and is equally excreted renal and biliary in humans.
Primovist™ brightens the signal of T1 weighted MR images immediately after contrast administration. Dynamic scanning and imaging of the accumulation phase (best after 20 min.) can also be performed after bolus injection of Primovistâ„¢. The hepatocytes uptake will increase the signal intensity of normal liver parenchyma. This results in improved lesion-to-liver contrast because malignant tumors (metastases, the majority of hepatocellular carcinomas) do not contain either hepatocytes or their functioning is hampered.

WARNING: Gadolinium-based contrast agents increase the risk for nephrogenic systemic fibrosis (NSF) in patients with acute or chronic severe renal insufficiency (glomerular filtration rate less than 30 mL/min/1.73m2), or acute renal insufficiency of any severity due to the hepato-renal syndrome or in the perioperative liver transplantation period.
Drug Information and Specification
NAME OF COMPOUND
Gadoxetic acid disodium, Gd-EOB-DTPA
CENTRAL MOIETY
Gd2+
CONTRAST EFFECT
T1, Predominantly positive enhancement
Short T1-relaxation time
PHARMACOKINETIC
50% hepatobiliary, 50% renal excretion
884 mosm/kgH2O
CONCENTRATION
0.25 mol/L
DOSAGE
12,5 - 25 µmol/kg
PREPARATION
Finished product
INDICATION
Liver lesions
DEVELOPMENT STAGE
for sale
DISTRIBUTOR
See below
PRESENTATION
DO NOT RELY ON THE INFORMATION PROVIDED HERE, THEY ARE
NOT A SUBSTITUTE FOR THE ACCOMPANYING PACKAGE INSERT!
Distribution Information
TERRITORY
TRADE NAME
DEVELOPMENT
STAGE
DISTRIBUTOR
EU
Primovist™
for sale
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Further Reading:
  Basics:
New MRI liver contrast agent Primovist® approved in EU
Thursday, 30 September 2004   by www.secinfo.com    
New MRI Liver Contrast Medium
Wednesday, 13 October 2004   by www.hospimedica.com    
Important Drug Warning for Gadolinium-Based Contrast Agents
Wednesday, 12 September 2007   by www.ismrm.org    
MAGNETIC RESONANCE IMAGING OF FOCAL LIVER LESIONS(.pdf)
2002
  News & More:
Comparison of liver scintigraphy and the liver-spleen contrast in Gd-EOB-DTPA-enhanced MRI on liver function tests
Thursday, 18 November 2021   by www.nature.com    
EMA's final opinion confirms restrictions on use of linear gadolinium agents in body scans
Friday, 21 July 2017   by www.ema.europa.eu    
FDA Drug Safety Communication: FDA warns that gadolinium-based contrast agents (GBCAs) are retained in the body; requires new class warnings
Tuesday, 19 December 2017   by www.fda.gov    
Gadolinium-containing contrast agents: removal of Omniscan and iv Magnevist, restrictions to the use of other linear agents
Friday, 5 January 2018   by www.gov.uk    
Searchterm 'Dynamic Scan' was also found in the following services: 
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Signa Ovation™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
www.gehealthcare.com/usen/mr/ovation/index.html From GE Healthcare;
the Signa Ovation™ is a patient-friendly open MRI scanner designed not only to handle a typical patient mix, but to accommodate larger patients, patients who are claustrophobic, and others who have difficulty tolerating the close quarters of conventional MR machines.
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
Integrated transmit and receive body coil; head coil, 4 channel neurovascular array, 8 channel CTL array, 2 channel shoulder array, 3 channel large extremity array, 3 channel small extremity array, 4 channel foot array, 3 channel wrist array
SYNCHRONIZATION
Standard cardiac gating, ECG/peripheral, respiratory gating
PULSE SEQUENCES
Standard: SE, IR, 2D/3D GRE and SPGR, 2D/3D TOF, 2D/3D FSE, 2D/3D FGRE and FSPGR, SSFP, FLAIR, EPI, optional: 2D/3D Fiesta, true chem sat, fat/water separation, single shot diffusion EPI, line scan diffusion
IMAGING MODES
Localizer, single slice, multislice, volume, fast, POMP, multi slab, cine, slice and frequency zip, extended dynamic range, tailored RF
TR
1.3 to 12000 msec in increments of 1 msec
TE
0.4 to 2000 msec in increments of 1 msec
SINGLE/MULTI SLICE
Simultaneous scan and reconstruction;; 80 images/second reconstruction
3cm to 40 cm continuous
2D: 1.4mm - 20mm 3D: 0.2mm - 20mm
1280 x 1024
MEASURING MATRIX
128x512 steps 32 phase//freq.
PIXEL INTENSITY
256 gray levels
0.08 mm; 0.02 mm optional
MAGNET TYPE
Permanent
175 x 85 x 447 cm
MAGNET WEIGHT
19200 kg
H*W*D
530 x 175 x 250 cm
POWER REQUIREMENTS
200 - 480, 3-phase
GRADIENT COOLING
None
MAX. GRADIENT AMPLITUDE
19 mT/m
5-GAUSS FRINGE FIELD
2.5 m/2.5 m
Computerized passive shimming during magnet setup, autoshim per series with automatic table motion to magnet isocenter for each prescription
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MRI Resources 
Knee MRI - Mass Spectrometry - Examinations - Education - Movies - Contrast Enhanced MRI
 
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 
Chemistry - Coils - Open Directory Project - Knee MRI - Most Wanted - MR Guided Interventions
 
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