15 mins confidence:   peer agreement (net): +2 | increased signal intensity
Explanation:
In the healthy volunteer, images obtained before and during administration of 100% O2 demonstrated increased CSF signal intensity after O2 administration; this was identical to the changes observed in patients under anesthesia.
http://radiology.rsna.org/content/218/1/152.full
Recovery of increased signal intensity of the cervical cord on magnetic resonance imaging after surgery for spontaneous spinal epidural hematoma causing hemiparesis
http://www.neurologyindia.com/article.asp?issn=0028-3886;yea...
A paradoxical signal intensity increase in fatty livers using opposed-phase gradient echo imaging with fat-suppression pulses
http://www.ingentaconnect.com/content/klu/247/2008/00000038/...
The opposite is: reduced signal intensity resp. decreased signal intensity
Areas with reduced signal intensity were classified as the low signal group and those with no reduced signals were classified as the control group.
Does decreased T1 signal intensity in the retrodiscal tissue of the temporomandibular joint reflect increased density of collagen fibres?
http://dmfr.birjournals.org/cgi/content/abstract/32/4/222
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Note added at 21 Min. (2009-10-30 16:40:23 GMT)
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signalarm = low signal intensity
Low signal intensity, poor enhancement on MRI may indicate malignancy.
http://www.highbeam.com/doc/1G1-106430333.html
Although there is agreement that low-intensity signal changes on T1-weighted magnetic resonance (MR) images are a prognostic factor for poor outcome after surgical treatment of cervical myelopathy due to chronic cord compression, the role of high-intensity signal changes on T2-weighted images is still controversial.
http://thejns.org/doi/abs/10.3171/spi.2007.6.1.4
signalnormal = normal signal intensity
To study the normal signal intensity pattern in the primary auditory cortex (first Heschl gyrus [HG]) and the surrounding cortices in the superior temporal gyrus (STG) and middle temporal gyrus (MTG) on T2-weighted magnetic resonance (MR) images.
http://radiology.rsna.org/content/214/1/217.abstract
|  Ingrid Moore
Germany
Local time: 12:56
Specializes in field
Native speaker of:  German
PRO pts in category: 95
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16 mins confidence: peer agreement (net): +2 | hyperintense
Explanation:
vs. hypointense
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Note added at 18 Min. (2009-10-30 16:37:43 GMT)
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Im Befund wird deshalb bei der Beschreibung einer Läsion nicht von „hell“ oder „dunkel“ gesprochen, sondern von hyperintens für signalreich, hell und von hypointens für signalarm, dunkel. Bei Röntgenbildern werden auch die Begriffe hyperdens und hypodens zur Beschreibung des relativen Schwärzungsgrads benutzt. Beispielsweise ist ein Hirntumor in T2-gewichteten Bildern meistens hyperintens zum normalen Hirngewebe und hypointens gegenüber Fettgewebe.
http://www.radiologie-korbach.de/kernspintomographie.htm
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Note added at 36 Min. (2009-10-30 16:55:19 GMT)
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Figure 1: Brain MRI:T2 weighted axial image shows a hyperintense lesion in the right posterior temporal region with edema (arrows)
http://www.djo.harvard.edu/site.php?url=/physicians/gr/544&p...
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Note added at 43 Min. (2009-10-30 17:02:24 GMT)
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***hyperintense signal***
Sagittal T2-weighted MR images showed hyperintense signal of the lesion along with few low signal areas within it (Fig. 2B). A note is made of degenerative changes at C4/5 and C5/6 level.
http://www.urmc.rochester.edu/smd/Rad/neurocases/Neurocase80...
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