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Glossary entry

Spanish term or phrase:

foco no hiperintenso en T2

English translation:

focus that is not T2 hyperintense

Added to glossary by BristolTEc
Dec 11, 2018 00:28
5 yrs ago
21 viewers *
Spanish term

foco no hiperintenso en T2

Spanish to English Medical Medical (general) Breast pathology
In a medical training text from Spain for translation to British English.

MRI imaging observation. I understand a "foco hiperintenso en T2" would translate to "T2-hyperintense focus", but what about the "NO hiperintenso"? And what does it even mean? If it is not hyperintense (and I assume not hypointense), what is it?
Proposed translations (English)
3 focus that is not T2 hyperintense
3 +1 isointense focus / on T2
4 normointense focus on the T2-weighted images
3 mildly intense focal lesion on T2-weighted imaging

Proposed translations

9 hrs
Selected

focus that is not T2 hyperintense


Conversely, concerning findings that favor biopsy include a focus that is not T2 hyperintense...

https://www.medscape.org/viewarticle/844935_4

PHYSICS OF MRI

Tissue can be characterized by two different relaxation times – T1 and T2. T1 (longitudinal relaxation time) is the time constant which determines the rate at which excited protons return to equilibrium. It is a measure of the time taken for spinning protons to realign with the external magnetic field. T2 (transverse relaxation time) is the time constant which determines the rate at which excited protons reach equilibrium or go out of phase with each other. It is a measure of the time taken for spinning protons to lose phase coherence among the nuclei spinning perpendicular to the main field.

http://casemed.case.edu/clerkships/neurology/web neurorad/mr...

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4 KudoZ points awarded for this answer. Comment: "Many thanks"
1 hr

mildly intense focal lesion on T2-weighted imaging

Examples:

https://www.ajronline.org/doi/full/10.2214/AJR.13.11266
In contrast to T1-weighted sequences, which highlight anatomic detail and contrast enhancement, fluid-sensitive T2-weighted sequences depict edema, hemorrhage, mucus, or cystic fluid. ... In the differential diagnosis of breast masses on MRI, most masses that have high signal intensity on T2-weighted images are benign.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5823479/
by M Grant - ‎2017 - ‎Related articles
Aug 9, 2017 - Metastatic tumors (eg, breast, lung, melanoma, lymphoma) are up to 40 times ... This mass was **mildly intense on T1-weighted imaging**, highly intense ..... Uddin A., Greenwood J.P., Plein S. MR imaging of cardiac tumors and ...

jnm.snmjournals.org/content/49/8/1305/F6.expansion.html
Jul 16, 2008 - (A) Planar image showing **mildly intense focal lesion** extending to left ... Feasibility of 18F-FDG Dose Reductions in Breast Cancer PET/MRI ...

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+1
2 hrs

isointense focus / on T2

Para armar la frase haría falta un mínimo contexto adicional -ya que no he podido encontrar ejemplos específicos con una combinación equivalente (con T2 y la frase completa, incluyendo [focus]) pero isointense parece la denominación habitual de referencia para no hiperintenso mientras que en T2 suele expresarse como on T2 (con o sin la especificación posterior de weighted images/sequences).

The descriptors used are hyperintense, isointense, and hypointense.
https://www.google.es/url?sa=t&source=web&rct=j&url=https://...
There is a T2 hypointense, T1 isointense focus in the dorsal spinal cord at the level of caudal C2
https://books.google.es/books?id=YQQbCAAAQBAJ&pg=PA319&lpg=P...
occasional finding ofa central hypointense or isointense focus within the cyst.
https://books.google.es/books?id=9R-RAAAAQBAJ&pg=PA142&lpg=P...
weighted image shows isointense focus
https://www.google.es/url?sa=t&source=web&rct=j&url=http://p...
an eccentric non-enhancing isointense focus
https://www.researchgate.net/publication/283442473_Dissemina...

on the T2-weighted images nine lesions appeared isointense to the normal
parotid tissue, lncluding six malignancies
https://www.google.es/url?sa=t&source=web&rct=j&url=http://n...

Peer comment(s):
agree Cristina Bouzas, Bsc, MA : Prefix "iso" means "equal to", thus entailing a comparison with another image or focus, which does not seem to be the case.
7 hrs
Todos los descriptores de imagen RM relativos a intensidad son comparadores; hiper/hipointenso (más o menos intenso que la intensidad de fondo de la estructura observada) y no hiperintenso (sin resalte de intensidad; isointense / hypo-isointense)
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10 hrs

normointense focus on the T2-weighted images

As the lesion is not hyperintense nor hypointense (referring to the contrast uptake or enhancement in the MRI images), I'd say that the focus is normointense (of normal intensity).
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3100134/
Reference:

https://www.ncbi.nlm.nih.gov/pubmed/2482943

https://books.google.es/books?id=9OMOfruKosgC&pg=RA1-PA157&lpg=RA1-PA157&dq=normointense+T2-weighted&source=bl&ots=pTTbUJhB5K&sig=sr0EksNP02

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