mit äußerst flauer Absenkung im ADC-Map
English translation: with extremely low intensity in the ADC map
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| 18:38 Jul 5, 2009 |
| German to English translations [PRO] Medical - Medical (general) / radiology | |||||||
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|  Selected response from: Anne Schulz Germany Local time: 19:50 | ||||||
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| 3 +2 | with extremely low intensity in the ADC map |
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| 3 +1 | extremely weak decrease in the ADC map |
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| 3 | completely stagnant values |
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| Summary of reference entries provided | |||
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| "eingeschränkte Diffusion mit entsprechender Absenkung" |
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| "with decreased ADC" |
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| Discussion entries: 10 | |
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Answers
1 hr confidence: 
completely stagnant values Explanation: IMO :) |
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5 hrs confidence: peer agreement (net): +1
peer agreement (net): +1extremely weak decrease in the ADC map Explanation: The way I understand it, it's the two hyperintense spots that demonstrate the weak decrease (of their hyperintensity) in the ADC map. |
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11 hrs confidence: peer agreement (net): +2
peer agreement (net): +2with extremely low intensity in the ADC map Explanation: Although the grammar seems to suggest the opposite, your second suggestion is probably appropriate. For a hyperintense lesion on the diffusion weighted trace image, the corresponding ADC map should show hypointensity if it is a real diffusion pathology rather than an artifact. Besides, "flau" is typically used to characterize a signal intensity. I therefore assume that this statement was meant as "Absenkung auf äußerst flaue Werte im ADC-Map". (Contrarily, if the conclusion of the MRI report is that the patient has no "real" lesions, the interpretation of "flaue Absenkung" would be the opposite :-) "ADC maps are acquired via post-processing by calculating the apparent diffusion coefficient for each voxel of tissue and allocating a signal intensity according to its value. Therefore restricted tissue, which has a low ADC, is darker than free diffusing areas that have a high ADC. The contrast is therefore the mirror of the trace images. This is useful when T2 shine through is a problem." http://books.google.com/books?id=PZoaJek9u-oC&pg=PA375&lpg=P... -------------------------------------------------- Note added at 22 hrs (2009-07-06 17:35:40 GMT) -------------------------------------------------- Re your note: Yes, exactly, a low diffusion coefficient (impaired diffusion in tissue, low ADC value) is represented by a low intensity signal in the ADC map, but a bright (hyperintense) signal in the diffusion-weighted trace image (the "normal" MRI image). ("Signal" actually being just an allocated brightness value in MRI.) |
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1 hr |
| Reference: "eingeschränkte Diffusion mit entsprechender Absenkung" Reference information: http://books.google.com/books?id=ma1-waw2rkcC&pg=RA1-PA54&lp... Low signal (arrows) on the ADC map confirms the acute nature of the diffusion changes. http://www.medscape.com/viewarticle/500443_4 |
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8 hrs |
| Reference: "with decreased ADC" Reference information: Search for the phrase "with decreased ADC" in the document here: http://tinyurl.com/pz72td -------------------------------------------------- Note added at 8 hrs (2009-07-06 03:25:34 GMT) -------------------------------------------------- Also, googling for "ADC map" + "hyperintense spots" may give some clues, hopefully ? |
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