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Track and Field
Sports performed on a track, field, or arena and including running events and other competitions, such as the pole vault, shot put, etc.
Year introduced: 1976
tram track sign optic nerve [Supplementary Concept]
A cranial imaging feature characterized by parallel thickening and enhancement around the OPTIC NERVE. It is indicative of OPTIC NERVE DISEASES, e.g., optic nerve sheath meningiomas.
Date introduced: February 15, 2022
Radiometry
The measurement of radiation by photography, as in x-ray film and film badge, by Geiger-Mueller tube, and by SCINTILLATION COUNTING.
Year introduced: GEIGER-MUELLER COUNTER was see under RADIOMETRY 1963-1977
Tram track sign chest [Supplementary Concept]
A chest imaging feature characterized by parallel walls of the dilated bronchi often found in CYLINDRICAL BRONCHIECTASIS.
Tram track sign brain [Supplementary Concept]
A BRAIN IMAGING finding characterized by (double-lined) gyriform pattern involving the FRONTAL LOBE and/or PARIETAL LOBE. It is indicative of subcortical gyriform CALCINOSIS in STURGE-WEBER SYNDROM
Otk protein, Drosophila [Supplementary Concept]
required for layer-specific neuronal connectivity; RefSeq NM_078981
Date introduced: December 22, 2004