Hemorrhagic and nonhemorrhagic stroke: diagnosis with diffusion-weighted and T2-weighted echo-planar MR imaging

Radiology
T EbisuS Ueda

Abstract

To determine if diffusion- and T2-weighted echo-planar magnetic resonance (MR) imaging can be used to detect acute hemorrhagic stroke and to differentiate hemorrhagic from nonhemorrhagic stroke. A total of 118 examinations (diffusion- and T2-weighted MR imaging) in 19 patients with 27 nonhemorrhagic strokes and in six patients with seven hemorrhagic strokes were performed. The ratios of apparent diffusion coefficient and of signal intensity on T2-weighted MR images in lesions to those in contralateral control areas were calculated. Decreased ADC was shown in lesions of acute (0-3 days) hemorrhagic stroke, as well as in lesions of acute nonhemorrhagic stroke. Hypointense areas were seen on T2-weighted MR images in patients with acute hemorrhagic stroke, in contrast to normal to increased signal intensity in those with acute nonhemorrhagic stroke. Apparent diffusion coefficient tended to remain decreased in hemorrhagic stroke lesions even 100 days after onset, in contrast to the increased coefficient in nonhemorrhagic stroke lesions at the late chronic stage (31 days or older). Diffusion- and T2-weighted echo-planar MR imaging can be used to detect and distinguish between acute hemorrhagic and nonhemorrhagic stroke.

Citations

Apr 7, 2006·Postgraduate Medical Journal·P L TanD Briley
Jan 25, 2000·The British Journal of Radiology·D J WilcockG R Cherryman
Oct 6, 2005·Cerebrovascular Diseases·Catherine OppenheimGuy Cosnard
Jun 18, 2003·The American Journal of Emergency Medicine·Sung Pil ChungIn Soo Yoo
Jan 6, 2001·Topics in Magnetic Resonance Imaging : TMRI·A ZaheerP W Schaefer
Mar 31, 1999·Current Opinion in Neurology·A E Baird, S Warach
Aug 25, 2009·Journal of the Neurological Sciences·Noriyuki KimuraToshihide Kumamoto
Jan 29, 2014·Journal of Magnetic Resonance Imaging : JMRI·Benjamin BenderAndreas Korn
Jul 30, 2005·Surgical Neurology·Hidenori EndoTeiji Tominaga
Jun 9, 2015·Clinical Radiology·J S WhangE Libfeld
Jan 5, 2002·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·B K KangY S Pyeun
Jun 6, 2018·The Journal of International Medical Research·Ikjae ImMyoung-Hwan Ko
Jul 20, 2007·The Cochrane Database of Systematic Reviews·D BereczkiM Liu
Sep 10, 1998·Stroke; a Journal of Cerebral Circulation·K J van EverdingenW P Mali
Sep 2, 1999·Stroke; a Journal of Cerebral Circulation·D C TongM P Marks
Nov 4, 2000·Stroke; a Journal of Cerebral Circulation·S L Keir, J M Wardlaw
Aug 4, 2001·Stroke; a Journal of Cerebral Circulation·S Condette-AuliacL Picard
Dec 29, 2010·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Tsugumi ImamuraMasataka Uetani
Oct 6, 2012·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Masayuki KanematsuNoriyuki Moriyama
Aug 5, 2000·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·L J WolanskyV Prasad
Nov 9, 2002·Acta Radiologica·M Alemany Ripoll, R Raininko
Apr 3, 1999·Stroke; a Journal of Cerebral Circulation·P D SchellingerK Sartor
Apr 26, 2002·Acta Radiologica·Montserrat Alemany RipollR Raininko
Jun 27, 2020·The Journal of International Medical Research·Bin LvSheng-Yuan Yu

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism
A E Baird, S Warach
Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism
S WarachR R Edelman
© 2021 Meta ULC. All rights reserved