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53 results on '"Transcranial ultrasonography"'

51. Prevalence of Right to Left Shunts in Japanese Patients with Migraine: A Single-center Study.

Author

Iwasaki A, Suzuki K, Takekawa H, Takashima R, Suzuki A, Suzuki S, and Hirata K

Subjects
Adolescent, Adult, Age Factors, Age of Onset, Aged, Female, Foramen Ovale, Patent epidemiology, Humans, Male, Middle Aged, Migraine Disorders epidemiology, Migraine with Aura epidemiology, Migraine with Aura pathology, Photophobia epidemiology, Prevalence, Ultrasonography, Doppler, Transcranial, Young Adult, Foramen Ovale, Patent pathology, Migraine Disorders pathology
Abstract

Objective Several studies have shown an increased prevalence of right-to-left shunt (RLs) in migraine patients, particularly those with aura. However, the prevalence of RLs and its relation to Japanese patients with migraine are unknown. We investigated the prevalence of RLs in Japanese patients with migraine. Methods In total, 112 consecutive patients with migraine were recruited from our headache outpatient clinic. Migraine with aura (MA) and migraine without aura (MWOA) were diagnosed according to the International Classification of Headache Disorders, 3rd edition (beta-version). Contrast transcranial Doppler ultrasound was used to detect RLs, including patent foramen ovale (PFO). Then, the associations between RLs and patients' backgrounds and presence of aura were assessed. Results The overall prevalence of RLs and PFO in migraine patients was 54.5% and 43.8%, respectively. The prevalence of RLs and PFO in the MA group were significantly higher than in the MWOA group (RLs, 62.9% vs. 44.0%, p=0.046; PFO, 54.8% vs. 30.0%, p=0.008). There were no marked differences in the prevalence of large, middle and small shunts between MA and MWOA patients. Compared with the MWOA patients, the MA patients were younger (p=0.013) and had early onset age (p=0.013) and increased prevalence of photophobia (p=0.008). Conclusion RLs were found in over half of the Japanese patients with migraine. Our study suggests a possible link between RLs and MA.

Published
2017
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52. Ultrasound evaluation of acute bacterial meningitis and its sequale in infants

Author

N Gogoi, Dhiraj Baruah, and RK Gogoi

Subjects
medicine.medical_specialty, business.industry, Ultrasound, Echogenicity, medicine.disease, Transcranial ultrasonography, Acute bacterial meningitis, Ventriculitis, Medicine, Radiology, Nuclear Medicine and imaging, Radiology, Ultrasonography, business, Prospective cohort study, Ventriculomegaly
Abstract

Objective: Ultrasonographic characterization of intracranial pathologies with respect to acute bacterial meningitis and its sequale. Materials and methods: A prospective study of 70 cases, below 12 months of age within a period of two years, was undertaken to characterize sonographic abnormalities in acute bacterial meningitis and its sequale. Results: Echogenic sulci, ventriculomegaly and ventriculitis were the findings observed on ultrasonography in cases with acute bacterial meningitis and its sequale. Conclusion: Infantile transcranial ultrasonography is an useful diagnostic tool for rapid, safe and fairly accurate evaluation of intracranial pathologies in relation to acute bacterial meningitis and its sequale.

Published
2006

53. The relationship between right-to-left shunt and brain white matter lesions in Japanese patients with migraine: a single center study

Author

Koichi Hirata, Ayano Suzuki, Ryotaro Takashima, Shiho Suzuki, Hidehiro Takekawa, Akio Iwasaki, and Keisuke Suzuki

Subjects
Adult, Male, medicine.medical_specialty, Neurology, Aura, Ultrasonography, Doppler, Transcranial, Right-to-left shunt, Migraine Disorders, Short Report, Clinical Neurology, Brain white matter lesions, Foramen Ovale, Patent, Pulmonary arteriovenous malformations, Comorbidity, 030204 cardiovascular system & hematology, White matter, 03 medical and health sciences, 0302 clinical medicine, Japan, Internal medicine, medicine.artery, mental disorders, Prevalence, Medicine, Humans, Migraine, medicine.diagnostic_test, business.industry, Transcranial ultrasonography, Magnetic resonance imaging, General Medicine, Middle Aged, medicine.disease, Magnetic Resonance Imaging, White Matter, Patent foramen ovale, Transcranial Doppler, medicine.anatomical_structure, Anesthesiology and Pain Medicine, Anesthesia, Cardiology, Female, Neurology (clinical), business, 030217 neurology & neurosurgery
Abstract

Background There may be a link between right-to-left shunt (RLs) and brain white matter lesions (WMLs) in patients with migraine. In this study, we assessed the relationship between WMLs and RLs in Japanese migraine patients. Methods A total of 107 consecutive patients with migraine with (MA) and without aura (MWOA) were included in this study. Contrast transcranial Doppler ultrasound was used to detect RLs. WMLs were graded using brain magnetic resonance imaging based on well-established criteria. Findings The prevalence of RLs was significantly increased in the WMLs positive group (n = 24) compared with the WMLs negative group (n = 83) (75.0% vs. 47.0%, p = 0.015). In prevalence of WMLs between MA and MWOA patients, there were no statistical differences (p = 0.410). Logistic regression analysis adjusted by age and disease duration of migraine identified an RLs-positive status as the sole determinant for the presence of WMLs (OR = 6.15; 95% CI 1.82–20.8; p = 0.003) Conclusion Our study suggests a possible link between RLs and WMLs in Japanese patients with migraine.

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