How to Measure Substantia Nigra Hyperechogenicity in Parkinson Disease Detailed Guide With Video

被引:23
作者
Walter, Uwe [1 ]
机构
[1] Univ Rostock, Dept Neurol, D-18147 Rostock, Germany
关键词
methodological standard; Parkinson disease; parkinsonism; substantia nigra; transcranial sonography; BRAIN PARENCHYMA SONOGRAPHY; TRANSCRANIAL SONOGRAPHY; MOVEMENT-DISORDERS; ESSENTIAL TREMOR; MIDBRAIN SONOGRAPHY; DIFFERENTIAL-DIAGNOSIS; PREDICTIVE-VALUE; ULTRASOUND; SPECT; REPRODUCIBILITY;
D O I
10.7863/ultra.32.10.1837
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
The detection of an enlarged echogenic size ("hyperechogenicity") of the substantia nigra on transcranial sonography is increasingly used for the early and differential diagnosis of Parkinson disease. However, the diagnostic value of substantia nigra sonography depends on the quality of its execution. This article with an accompanying video presents a step-by-step description and demonstration of ultrasound system settings, typical errors in assessment of the substantia nigra, planimetric measurement of substantia nigra echogenicity according to current guidelines, and its diagnostic implications in 2 exemplary patients with parkinsonism. Published cutoff values for grading substantia nigra hyperechogenicity with different ultrasound systems and novel technologies are reviewed.
引用
收藏
页码:1837 / 1843
页数:7
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