Transcranial Sonography in Movement Disorders

Bártová, Petra; Školoudík, David; Bar, Michal; Ressner, Pavel; Hluštı́k, Petr; Herzig, Roman; Kaňovský, Petr

doi:10.5507/bp.2008.039

Cited by 19 publications

(10 citation statements)

References 58 publications

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“…In sonography, midbrain is hypoechoic and it can be differentiated from the brighter surrounding basal cisterns. In case of SAH, such echogenic difference between these structures is emphasized 22 . Whether an uncal herniation is suspected, a deformation of the midbrain in absence of surrounding cerebrospinal fluid should be detected at TCS.…”

Section: Discussionmentioning

confidence: 99%

“…In case of SAH, such echogenic difference between these structures is emphasized. 22 Whether an uncal herniation is suspected, a deformation of the midbrain in absence of surrounding cerebrospinal fluid should be detected at TCS. Another technique for better visualizing an eventual temporal uncus displacement is by following the hyperechoic free margin of tentorium both in axial and coronal planes.…”

Section: Basal Cisterns Patencymentioning

confidence: 99%

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Transcranial Sonography versus CT for Postoperative Monitoring After Decompressive Craniectomy

Bonis

Mantovani

Lofrese

et al. 2020

Journal of Neuroimaging

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Computed tomography (CT) is the actual gold standard diagnostic tool for monitoring patients after decompressive craniectomy. It is validated and provides a wide number of information. However, it takes time, expensive, and requires patient transportation. Transcranial sonography (TCS) could represent an alternative diagnostic tool in these patients. The aim of this study is to compare TCS versus CT scan after decompressive craniectomy in terms of diagnosing complications and costs evaluation. METHODS: We prospectively enrolled 10 craniectomized patients who were monitored with sonography and CT. Ventricular measurements and possible complications were evaluated by two independent observers. The two methods were compared using Fisher's exact test and Spearman's Rho coefficient. A costs analysis was also conducted. RESULTS: A good correlation coefficient (ρ) between CT and TCS was found for frontal horn dimensions (ρ .9929), median cella (ρ .9516), and third ventricle (ρ .8989). All results were statistically significant (P < .0001) and Bland-Altman plots showed no systemic biases. Fisher's exact test showed no statistically significant differences between TCS and CT for all the studied predefined complications. Cost analysis showed a 68% cost reduction in favor of TCS. CONCLUSIONS: TCS could be a reliable alternative diagnostic tool for major complications in patients undergoing decompressive craniectomy. It could limit the number of CT scans per patient overcoming several limitations, such as costs, radiation exposure, and need to move the patient.

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Section: Discussionmentioning

confidence: 99%

Section: Basal Cisterns Patencymentioning

confidence: 99%

Transcranial Sonography versus CT for Postoperative Monitoring After Decompressive Craniectomy

Bonis

Mantovani

Lofrese

et al. 2020

Journal of Neuroimaging

View full text Add to dashboard Cite

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“…Regarding the LN hyperechogenicity, few earlier studies only are available, showing that this nucleus was less often affected or even spared in typical HD (10). LN seems to be more hyperechogenic in the hypokinetic-rigid form of HD (19), as well as in patients with dystonia and Wilson's disease (22), although none of these studies reported the specificity and sensitivity of the hyperechogenicity observed.…”

Section: Discussionmentioning

confidence: 97%

An unusual gait disorder at the Emergency Department: role of the quantitative assessment of parenchymal transcranial Doppler sonography

Godani¹,

Lanza

Trevisan

et al. 2021

Quant Imaging Med Surg

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“…One experienced ultrasound practitioner who was responsible for detecting echogenicity in SN. The results were evaluated by the criteria proposed by Bartova P et al [ 8 ] and divided into five grades. Grade I: the same as brainstem; grade II: with scattered points and thin lines slightly stronger than brainstem; grade III: with patches of moderate echogenicity but weaker than brain pool; grade IV: with patches of hyper echogenicity as the same as brain pool; grade V: with patches of hyper echogenicity stronger than brain pool.Grade I-II are defined as normal/SN-, and grade III-V as hyper echogenicity/SN+.…”

Section: Methodsmentioning

confidence: 99%

Clinical features and dysfunctions of iron metabolism in Parkinson disease patients with hyper echogenicity in substantia nigra: a cross-sectional study

Cao

Zuo

et al. 2018

BMC Neurol

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BackgroundTranscranial ultrasound is a useful tool for providing the evidences for the early diagnosis and differential diagnosis of Parkinson disease (PD). However, the relationship between hyper echogenicity in substantia nigra (SN) and clinical symptoms of PD patients remains unknown, and the role of dysfunction of iron metabolism on the pathogenesis of SN hyper echogenicity is unclear.MethodsPD patients was detected by transcranial sonography and divided into with no hyper echogenicity (PDSN-) group and with hyper echogenicity (PDSN+) group. Motor symptoms (MS) and non-motor symptoms (NMS) were evaluated, and the levels of iron and related proteins in serum and cerebrospinal fluid (CSF) were detected for PD patients. Data comparison between the two groups and correlation analyses were performed.ResultsPDSN+ group was significantly older, and had significantly older age of onset, more advanced Hohen-Yahr stage, higher SCOPA-AUT score and lower MoCA score than PDSN- group (P < 0.05). Compared with PDSN- group, the levels of transferrin and light-ferritin in serum and iron level in CSF were significantly elevated (P < 0.05), but ferroportin level in CSF was significantly decreased in PDSN+ group (P < 0.05).ConclusionsPD patients with hyper echogenicity in SN are older, at more advanced disease stage, have severer motor symptoms, and non-motor symptoms of cognitive impairment and autonomic dysfunction. Hyper echogenicity of SN in PD patients is related to dysfunction of iron metabolism, involving increased iron transport from peripheral system to central nervous system, reduction of intracellular iron release and excessive iron deposition in brain.

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Transcranial Sonography in Movement Disorders

Cited by 19 publications

References 58 publications

Transcranial Sonography versus CT for Postoperative Monitoring After Decompressive Craniectomy

Transcranial Sonography versus CT for Postoperative Monitoring After Decompressive Craniectomy

An unusual gait disorder at the Emergency Department: role of the quantitative assessment of parenchymal transcranial Doppler sonography

Clinical features and dysfunctions of iron metabolism in Parkinson disease patients with hyper echogenicity in substantia nigra: a cross-sectional study

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