Importance of clot structure in gradient-echo magnetic resonance imaging of hematoma

Journal of Magnetic Resonance Imaging : JMRI
K H TaberJ B Kirkpatrick

Abstract

The MR appearance of clots with different internal structures was compared on gradient-echo (GE) and spin-echo (SE) images. After MR imaging, clots were submitted for histological analysis to allow direct correlation of clot structure with MR image intensity. Normal heterogeneous clots (containing entrapped serum) were hypointense compared to both unclotted blood (Hct 45) and brain on GE MR images. Homogeneous (serum-poor) clots and settled blood were hyperintense to unclotted blood and isointense or hyperintense to brain. These results indicate that the GE technique is quite sensitive to the physical inhomogeneity created (at the voxel level) when blood forms an inhomogeneous clot containing relatively large islands of red blood cells (RBCs) surrounded by lakes of serum. The effect of the different possible clot structures on GE signal intensity thus provides an etiology for the previously unexplained observations of hemorrhage with high signal intensity on GE MR images.

References

Jan 1, 1975·IEEE Transactions on Bio-medical Engineering·R A BrooksV Kudravcev
Dec 1, 1992·Current Opinion in Neurology and Neurosurgery
Mar 11, 1992·Journal of Magnetic Resonance Imaging : JMRI·K H TaberL A Hayman
Jan 1, 1991·Neuroradiology·M E Ruiz, V M Haughton
Dec 1, 1990·Investigative Radiology·C C BlackmoreV J Marder
Jan 1, 1990·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·R G BryantC Francis
Sep 1, 1990·Journal of Computer Assisted Tomography·M Mascalchi, G Dal Pozzo
Sep 1, 1989·Radiology·J M Eskridge
Oct 1, 1987·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·P Gillis, S H Koenig
May 1, 1988·Radiographics : a Review Publication of the Radiological Society of North America, Inc·J M Gomori, R I Grossman
Jan 1, 1987·Journal of Computer Assisted Tomography·I R YoungG M Bydder
Jul 1, 1985·Stroke; a Journal of Cerebral Circulation·S TakasugiK Matsumoto
Oct 1, 1985·Radiology·J M GomoriL T Bilaniuk
Dec 1, 1984·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·S H Koenig, R D Brown
Jan 1, 1982·Magnetic Resonance Imaging·G D FullertonN C Dornbluth

❮ Previous
Next ❯

Citations

Apr 17, 2002·Journal of the American College of Cardiology·Roberto CortiJuan J Badimon
Jun 28, 2011·Journal of Neurosurgery·Olivia O HustonJohn Huston
Oct 17, 2012·Ultrasound in Medicine & Biology·Miguel BernalMickael Tanter
May 29, 2003·Journal of Interventional Cardiology·Jolanda J WentzelZahi A Fayad
Nov 11, 2015·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Thomas RitzenthalerNorbert Nighoghossian
Jun 12, 2004·Stroke; a Journal of Cerebral Circulation·Marc Hermier, Norbert Nighoghossian
Oct 15, 2005·Stroke; a Journal of Cerebral Circulation·Kyung-Hee ChoDong-Wha Kang
Apr 7, 2016·Journal of Veterinary Science·Jimo JeongKichang Lee
Oct 21, 2017·Chinese Medical Journal·Lin LiMao-Ting Yuan
Jun 1, 2005·Cerebrovascular Diseases·E AssoulineH Chabriat
Oct 28, 2017·Blood·Andre L SamsonShaun P Jackson
Apr 26, 2002·Acta Radiologica·Montserrat Alemany RipollR Raininko

❮ Previous
Next ❯

Related Concepts

Related Feeds

Blood Clotting Disorders

Thrombophilia includes conditions with increased tendency for excessive blood clotting. Blood clotting occurs when the body has insufficient amounts of specialized proteins that make blood clot and stop bleeding. Here is the latest research on blood clotting disorders.