Magnetic Resonance - Technology Information Portal Welcome to MRI Technology••


 'Contrast Enhanced MRI' 
  2 3 5 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Result : Searchterm 'Contrast Enhanced MRI' found in 1 term [] and 14 definitions [], (+ 16 Boolean[] results
1 - 5 (of 31)     next
Result Pages : [1]  [2 3]  [4 5 6 7]
Searchterm 'Contrast Enhanced MRI' was also found in the following services: 
News  (18)  Resources  (3)  
Contrast Enhanced MRIInfoSheet: - Contrast Agents - 
Intro, Overview, 
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 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.comContrast Enhanced Computed Tomography
Radiology-tip.comContrast Enhanced Ultrasound,  Contrast Enhanced Doppler Imaging
• Share the entry 'Contrast Enhanced MRI':  Facebook  Twitter  LinkedIn  
• Related Searches:
    • Brain MRI
    • Contraindications
    • Liver Imaging
    • Gadolinium
    • 2 Dimensional Acquisition
Further Reading:
Optimal k-Space Sampling for Dynamic Contrast-Enhanced MRI with an Application to MR Renography
Thursday, 5 November 2009   by    
Background MRI Enhancement Up in Premenopausal Breast Cancer
Friday, 7 June 2013   by    
Bringing innovative technologies together
Monday, 18 November 2013   by    
  News & More:
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    
MRI Contrast Agent Analysis from Bruker
Sunday, 11 August 2013   by    
CMC Contrast Granted Orphan Drug Designation by the FDA for its Liver Specific MRI Contrast Media CMC-001
Wednesday, 27 November 2013   by    
All-organic MRI Contrast Agent Tested In Mice
Monday, 24 September 2012   by    
A groundbreaking new graphene-based MRI contrast agent
Friday, 8 June 2012   by    
Novel Imaging Technique Improves Prostate Cancer Detection
Tuesday, 6 January 2015   by    
New oxygen-enhanced MRI scan 'helps identify most dangerous tumours'
Thursday, 10 December 2015   by    
MRI Resources 
Corporations - MRCP - Breast Implant - Contrast Enhanced MRI - PACS - MRI Technician and Technologist Career
Abdominal ImagingMRI Resource Directory:
 - Abdominal Imaging -
General MRI of the abdomen can consist of T1 or T2 weighted spin echo, fast spin echo (FSE, TSE) or gradient echo sequences with fat suppression and contrast enhanced MRI techniques. The examined organs include liver, pancreas, spleen, kidneys, adrenals as well as parts of the stomach and intestine (see also gastrointestinal imaging). Respiratory compensation and breath hold imaging is mandatory for a good image quality.
T1 weighted sequences are more sensitive for lesion detection than T2 weighted sequences at 0.5 T, while higher field strengths (greater than 1.0 T), T2 weighted and spoiled gradient echo sequences are used for focal lesion detection. Gradient echo in phase T1 breath hold can be performed as a dynamic series with the ability to visualize the blood distribution. Phases of contrast enhancement include the capillary or arterial dominant phase for demonstrating hypervascular lesions, in liver imaging the portal venous phase demonstrates the maximum difference between the liver and hypovascular lesions, while the equilibrium phase demonstrates interstitial disbursement for edematous and malignant tissues.
Out of phase gradient echo imaging for the abdomen is a lipid-type tissue sensitive sequence and is useful for the visualization of focal hepatic lesions, fatty liver (see also Dixon), hemochromatosis, adrenal lesions and renal masses. The standards for abdominal MRI vary according to clinical sites based on sequence availability and MRI equipment. Specific abdominal imaging coils and liver-specific contrast agents targeted to the healthy liver tissue improve the detection and localization of lesions.
See also Hepatobiliary Contrast Agents, Reticuloendothelial Contrast Agents, and Oral Contrast Agents.

For Ultrasound Imaging (USI) see Abdominal Ultrasound at
Images, Movies, Sliders:
 MR Colonography Gadolinium per Rectum  Open this link in a new window

Courtesy of  Robert R. Edelman
 Anatomic Imaging of the Liver  Open this link in a new window

 CE MRA of the Aorta  Open this link in a new window
SlidersSliders Overview


• View the DATABASE results for 'Abdominal Imaging' (11).Open this link in a new window

• View the NEWS results for 'Abdominal Imaging' (3).Open this link in a new window.
Further Reading:
Abdominal MRI at 3.0 T: The Basics Revisited
Wednesday, 20 July 2005   by    
Usefulness of MR Imaging for Diseases of the Small Intestine: Comparison with CT
2000   by    
  News & More:
RSI-MRI imaging technology can effectively differentiate aggressive prostate cancer
Thursday, 2 June 2016   by    
Computer-aided detection and diagnosis for prostate cancer based on mono and multi-parametric MRI: A review - Abstract
Tuesday, 28 April 2015   by    
MRI for differentiating ovarian endometrioid adenocarcinoma from high-grade serous adenocarcinoma
Wednesday, 29 April 2015   by    
MRI identifies 'hidden' fat that puts adolescents at risk for disease
Tuesday, 27 February 2007   by    
Nottingham scientists exploit MRI technology to assist in the treatment of IBS
Thursday, 9 January 2014   by    
New MR sequence helps radiologists more accurately evaluate abnormalities of the uterus and ovaries
Thursday, 23 April 2009   by    
MRI Resources 
Pediatric and Fetal MRI - Mobile MRI - Devices - Libraries - Software - Lung Imaging
Adverse Reaction
Any abnormal reaction of a patient to an examination or procedure, like for example claustrophobia or side effects of MRI contrast agents.
A claustrophobic attack is MRI scanner dependent and more rare with an open MRI. An adverse reaction with magnetic resonance imaging contrast medium is very infrequent. In general, adverse reactions increase with the quantity of contrast media (usual dose of paramagnetic contrast agents is 0.1 mmol/kg) and also with the osmolarity of the compound.
Most frequently encountered adverse reactions are heat sensation, dizziness, nausea, hypotension due to vasodilatation, which can progress to hypotensive shock and anaphylactic reactions.
See also MRI Safety, Contrast Enhanced MRI, Breast MRI, and Cardiac MR imaging.
Radiology-tip.comSafety of Contrast Agents,  Anaphylactoid Reaction
Radiology-tip.comUltrasound Contrast Agent Safety

• View the DATABASE results for 'Adverse Reaction' (8).Open this link in a new window

Further Reading:
Contrast Agents: Safety Profile
  News & More:
Questions and Answers on Gadolinium-Based Contrast Agents
Friday, 9 January 2009   by    
Searchterm 'Contrast Enhanced MRI' was also found in the following services: 
News  (18)  Resources  (3)  
Blood Brain BarrierInfoSheet: - Contrast Agents - 
Intro, Overview, 
Types of, 
The brain tissue is provided with a tight endothelial layer on vessels that acts as a filter for substances that reach the brain through the blood stream. This filter is called the blood brain barrier.
The blood brain barrier is responsible for the absence of contrast agent enhancement in normal brain tissue after administration of the iodinated or paramagnetic contrast media used in brain MRI and computed tomography (CT) diagnostic. The absence of contrast uptake in normal tissue provides the basis for differentiation from pathological brain tissue, which is conversely characterized by a disruption of the blood brain barrier.
See also Contrast Enhanced MRI, MRI Safety, Adverse Reaction.
Images, Movies, Sliders:
 MRI Orbita T1  Open this link in a new window
 MRI Orbita T1 with Contrast  Open this link in a new window

• View the DATABASE results for 'Blood Brain Barrier' (7).Open this link in a new window

Further Reading:
  News & More:
Nanorobotic agents open the blood-brain barrier, offering hope for new brain treatments
Wednesday, 25 March 2015   by    
Magnetic resonance-guided motorized transcranial ultrasound system for blood-brain barrier permeabilization along arbitrary trajectories in rodents
Thursday, 24 December 2015   by    
MRI Resources 
Musculoskeletal and Joint MRI - Mobile MRI Rental - Implant and Prosthesis pool - Cardiovascular Imaging - Journals - Education
Blood Pool AgentsInfoSheet: - Contrast Agents - 
Intro, Overview, 
Types of, 
etc.MRI Resource Directory:
 - Contrast Agents -
Blood pool agents (intravascular contrast agents) remain in the blood for a prolonged time compared with conventional contrast agents, which diffuse quickly into the interstitial space. Magnetic resonance angiography (MRA), cardiovascular imaging, or contrast enhanced MRIs are possible over an hour or more. This advantage over conventional MRI contrast media allows also higher resolution MRA of several territories using respiratory or cardiac gating techniques with a single contrast bolus.
Different types of blood pool contrast agents:
Ultrasmall superparamagnetic iron oxide (USPIO)
Gd Labeled Albumin
Chromium labeled red blood cells
Gd-DTPA labeled dextran
Blood pool MRI contrast agents with their longer intravascular circulation can be designed to be targeted to necrotic myocardium, to assess myocardial viability, or tumor directed to provide better diagnostic information for various tumors. A disadvantage of the use of blood pool agents for MRA is that the separation of arteries and veins is more difficult because they are present in both and the overlapping of those vessels is disturbing. This can be solved by e.g. different MIP segmentation algorithms.
See also Necrosis Avid Contrast Agent, Tumor Specific Agents, Feruglose, Gadofosveset Trisodium (Vasovist), Ultrasmall Superparamagnetic Iron Oxide and Contrast Medium.


• View the DATABASE results for 'Blood Pool Agents' (16).Open this link in a new window

• View the NEWS results for 'Blood Pool Agents' (1).Open this link in a new window.
Further Reading:
Ablavar Prescribing Information
Lantheus Medical Imaging, Inc. Launches ABLAVAR™ (Gadofosveset Trisodium), a New Diagnostic Magnetic Resonance Angiography Agent
Wednesday, 20 January 2010   by    
Blood-Pool Imaging Using Technetium-99m-Labeled Liposomes(.pdf)
Blood pool imaging
  News & More:
Multimodal Nanoparticles for Quantitative Imaging(.pdf)
Tuesday, 13 December 2011   by    
MRI Resources 
Service and Support - Spectroscopy pool - Education pool - IR - - Implant and Prosthesis
     1 - 5 (of 31)     next
Result Pages : [1]  [2 3]  [4 5 6 7]
 Random Page
Share This Page

Forgot your UserID/Password ?  

In 2020 your scanner will probably work with a field strength of :

      Ups uses cookies! By browsing, you agree to our use of cookies.

Magnetic Resonance - Technology Information Portal
Member of SoftWays' Medical Imaging Group - MR-TIP • Radiology-TIP • US-TIP • 
Copyright © 2003 - 2018 SoftWays. All rights reserved. [ 22 January 2019]
Terms of Use | Privacy Policy | Advertising
 [last update: 2018-03-08 05:11:00]