PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 3523597

Dynamic digital subtraction imaging using fast low-angle shot MR movie sequence.

A Haase·D Matthaei·W Hänicke·J Frahm
View original source ↗Export metadata ↓

Abstract

High-quality magnetic resonance (MR) images can be recorded within seconds with the use of fast low-angle shot (FLASH) MR imaging. This technique also gives new access to the time evolution of both periodic functions, such as cardiac motion, and nonperiodic physiologic processes, such as flow within internal organs. The time course and regional distribution of dynamic processes detectable by FLASH MR movies are often demonstrated best within series of difference images obtained by digital subtraction of the original data, especially after the use of MR contrast agents. In addition, quantitative information is provided by the analysis of time-intensity profiles for selected regions of interest. Dynamic digital subtraction MR imaging was evaluated in rabbit brain and kidney using a 2.3-T, 40-cm-bore magnet. The time resolution was 1.5 seconds for brain studies and 28 seconds for kidney studies. The total examination times were 1.5 and 30 minutes, respectively.

Explore related subjects

AngiographyAnimalsBrainHealth PhysicsKidneyMagnetic Resonance SpectroscopyRabbitsRadionuclide ImagingSubtraction TechniqueJournal ArticleResearch Support, Non-U.S. Gov't

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

A Haase, D Matthaei, W Hänicke, J Frahm. 1986. Dynamic digital subtraction imaging using fast low-angle shot MR movie sequence.. https://doi.org/10.1148/radiology.160.2.3523597

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2007

Transhepatic vascular access for diagnostic and interventional procedures: techniques, outcome, and complications.

Early or multiple cardiac catheterizations may result in occlusion of the femoral veins prohibiting their use. The internal jugular or sub-clavian approach may be an appropriate alternative. However, these approaches may not be suitable in patients with surgical interruption of the superior vena cava. In other patients, they may not allow easy access to certain areas of the heart. The transhepatic approach is an important alternative route for performing cardiac catheterization and interventions. Depending on the planned procedure, it may be the preferred route to perform the cardiac catheterization even in the presence of patent femoral veins. The indications, technical details and potential complications of this approach are discussed.

Angiography↗
PubMed2007

Embolization for a bleeding pelvic fracture in a patient with persistent sciatic artery.

Emergency embolization for a bleeding pelvic fracture was performed in a patient with persistent sciatic artery, a rare anatomic variation in which the internal iliac artery continues to the popliteal artery. Successful hemostasis was achieved without complications by means of selective catheterization into each branch of the internal iliac artery. Awareness of this unusual vascular anatomy is critically important to avoid serious complication of emergency embolization.

Angiography↗