scholarly journals Asymmetrical Blood Flow in the Temporal Lobe in the Charles Bonnet Syndrome: Serial Neuroimaging Study

1994 ◽  
Vol 7 (2) ◽  
pp. 97-99 ◽  
Author(s):  
N. Adachi ◽  
M. Nagayama ◽  
K. Anami ◽  
K. Arima ◽  
H. Matsuda
Keyword(s):  
Computed Tomography ◽  
Blood Flow ◽  
Single Photon ◽  
Photon Emission ◽  
Emission Computed Tomography ◽  
Temporal Region ◽  
Visual Hallucinations ◽  
Charles Bonnet Syndrome ◽  
Magnetic Resonance Imaging Mri ◽  
The Right

Clinical features and results of neuroimagings of an 86 year old woman with the Charles Bonnet syndrome are reported. She had become completely blind bilaterally due to cataracts and glaucoma. Shortly after an operation for cataracts, she developed visual hallucinations which lasted for 22 years. She had no deterioration of intelligence. Computed tomography (CT) and magnetic resonance imaging (MRI) showed moderate generalized atrophy, particularly of the temporal lobes. A serial single photon emission computed tomography (SPECT) study during visual hallucinations demonstrated hyperperfusion in the left temporal region and the basal ganglia and hypoperfusion in the right temporal region. These findings suggest that asymmetrical blood flow, particularly in the temporal regions, may be correlated with visual hallucination in the Charles Bonnet syndrome.

scholarly journals Shifting of global aphasia to Wernicke’s aphasia in a patient with intact motor function: a case report

BMC Neurology ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ya-Chi Chuang ◽  
Chuan-Ching Liu ◽  
I-Ching Yu ◽  
Yu-Lin Tsai ◽  
Shin-Tsu Chang
Keyword(s):  
Computed Tomography ◽  
Right Hemisphere ◽  
Single Photon ◽  
Ct Perfusion ◽  
Single Case ◽  
Photon Emission ◽  
Emission Computed Tomography ◽  
Speech Fluency ◽  
Language Functions ◽  
The Right

Abstract Background Global aphasia without hemiparesis (GAWH) is a rare stroke syndrome characterized by the dissociation of motor and language functions. Here, we present a case of GAWH with the patient later regaining speech fluency. Case presentation A 73-year-old man was admitted to our emergency department immediately after an episode of syncope. On arrival, we noted his global aphasia but without any focal neurologic signs. Computed tomography (CT) perfusion scans showed a large hypodense region over his left perisylvian area. Under the impression of acute ischaemic stroke, he received recombinant tissue plasminogen activator (rtPA) injection and was treated as an inpatient. The patient was later discharged with GAWH status and received regular speech rehabilitation. After 14 months of rehabilitation, the patient gradually recovered his language expression ability. The degree of aphasia was evaluated with the Concise Chinese Aphasia Test (CCAT), and we obtained brain single photon emission computed tomography (SPECT) scans to assess cerebral blood flow. Conclusion A patient with severe impairments of Broca’s and Wernicke’s areas was able to talk fluently despite being unintelligible. SPECT revealed relative high level of radioactivity uptake in the right frontal lobe, suggesting the deficits in speech fluency could have been compensated by the right hemisphere. Although this is a single case demonstration, the results may strengthen the role of the right hemisphere in GAWH patients and suggests additional study that examines the possible benefits of stimulating activity at right homologous regions for recovering language function after global aphasia.

scholarly journals Interpretasi Hasil Pemeriksaan MRI Kardiak pada Penyakit Jantung Koroner

2013 ◽  
pp. 60-5
Author(s):  
Sony Hilal Wicaksono ◽  
Fachmi Ahmad Muslim ◽  
Vienna Rossimarina
Keyword(s):  
Computed Tomography ◽  
Ct Scan ◽  
Single Photon ◽  
Photon Emission ◽  
Emission Computed Tomography ◽  
Spect Mpi ◽  
Single Photon Emission Computed ◽  
Magnetic Resonance Imaging Mri ◽  
Photon Emission Computed Tomography ◽  
Tomography Scan

Seorang pasien dapat didiagnosis penyakit jantung koroner (PJK) melalui empat cara: kematian jantung mendadak, sindrom koroner akut, angina pektoris stabil paska revaskularisasi, dan hasil diagnostik noninvasif (Computed Tomography scan/CT scan koroner, Single Photon Emission Computed Tomography Myocardial Perfusion Imaging/SPECT MPI nuklir atau Magnetic Resonance Imaging/MRI)1. Pemeriksaan noninvasif memegang peranan penting, yaitu sebagai satu-satunya cara mendiagnosis PJK asimtomatik. Oleh sebab itu, pemahaman mengenai interpretasi hasil pemeriksaan noninvasif seperti CT scan koroner, SPECT MPI nuklir atau MRI kardiak dimasukkan dalam kompetensi dasar program pendidikan spesialis jantung dan pembuluh darah menurut Kolegium PERKI.

Neuroimaging in dementia and depression

2000 ◽  
Vol 6 (2) ◽  
pp. 109-119 ◽  
Author(s):  
John O'Brien ◽  
Bob Barber
Keyword(s):  
Computed Tomography ◽  
Brain Mapping ◽  
Single Photon ◽  
Photon Emission ◽  
Emission Computed Tomography ◽  
Positron Emission ◽  
Magnetic Resonance Imaging Mri ◽  
Near Future ◽  
The Brain ◽  
Photon Emission Computed Tomography

Neuroimaging is traditionally divided into structural and functional imaging. Structural imaging looks at brain structure or anatomy and includes computed tomography (CT) and magnetic resonance imaging (MRI). Functional techniques seek to examine the physiological functioning of the brain, either at rest or during activation, and include single photon emission computed tomography (SPECT), positron emission tomography (PET), MRI spectroscopy, functional MRI (fMRI) and encephalographic brain mapping. Although fMRI, MRI spectroscopy and brain mapping are likely to have clinical applications in the near future, the main imaging modalities of current clinical relevance to psychiatrists are CT, MRI and SPECT, which will be the focus of this article.

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