Biomedical subjects

Yuuji Asano

Publications and source records attributed to Yuuji Asano.

6 recordsLinked to original sources

PubMed2006

Technetium-99m ethyl cysteinate dimer dynamic and static single photon emission computed tomography in crossed cerebellar diaschisis.

A 69-year-old man with a past history of right middle cerebral artery (MCA) occlusion had cerebral single photon emission computed tomography (SPECT) with technetium-99m ethyl cysteinate dimer (Tc-99m ECD). Dynamic SPECT in the super-early phase revealed normal uptake in the left cerebellum and hypoactivity in the right MCA territory. Conventional static SPECT revealed decreased cerebral blood flow in the right MCA territory and the left cerebellum, indicating crossed cerebellar diaschisis. Our SPECT studies revealed decreased retention of Tc-99m ECD in the cerebellum manifested as crossed cerebellar diaschisis.

Aged↗

PubMed2005

Increased accumulations of N-isopropyl-p-[123I]-iodoamphetamine related to tumefactive multiple sclerosis.

We present a 21-year-old woman with tumefactive multiple sclerosis (MS) that exhibited a rapidly progressive course. There were multiple tumor-mimicking contrast-enhance lesions with surrounding edema and mass effect on magnetic resonance imaging. Both early and delayed brain single photon emission computed tomography (SPECT) with N-isopropyl-p-[123I]-iodoamphetamine demonstrated increased accumulations of the tracer and a high retention on the lesions. The SPECT findings represent a diagnostic pitfall for distinguishing MS from malignant brain tumors in patients with intracranial tumor-like lesions.

Adult↗

PubMed2003

Resting and acetazolamide-activated Tc-99m HMPAO brain SPECT for congenital bilateral absence of the internal carotid arteries.

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Acetazolamide↗

PubMed2003

[Clinical evaluation of 111In-oxine-labeled platelet and 99mTc-HSA-D scintigraphies in Kasabach-Meritte syndrome associated with anterior mediastinal hemangioma: case report].

A 12-year-old girl presented with Kasabach-Meritte syndrome associated with anterior mediastinal hemangioma. 111In-oxine-labeled platelet scintigraphy and 99mTc-HSA-D scintigraphy were very useful for the diagnosis and evaluation of this condition.

Blood Platelets↗

PubMed2002

[No 123I-BMIPP accumulation in the myocardium and type I CD36 deficiency in a patient with acute subendocardial infarction: a case report].

This patient was a 70-year-old man had acute subendocardial infarction in the inferior wall. 123I-BMIPP myocardial scintigraphy showed no accumulation in the myocardium. 123I-MIBG myocardial scintigraphy on the early and delay images and 99mTc-tetrofosmin myocardial scintigraphy at rest showed slightly decreased accumulation of the tracer in the apical region and in middle inferior wall of the left ventricle, indicating subendocardial infracted area. In the examinations of CD36 in platelets and monocytes, the patient had negative CD36 in platelets and monocytes, and type I CD36 deficiency was diagnosed. We supposed that no 123I-BMIPP accumulation may be related closely to type I CD36 deficiency.

3-Iodobenzylguanidine↗

PubMed2002

Increased uptake of technetium-99m-hexamethylpropyleneamine oxime related to primary leptomeningeal melanoma.

We present an autopsy case of primary leptomeningeal melanoma visualized with technetium-99m-hexamethylpropyleneamine oxime (Tc-99m-HMPAO) single photon emission CT (SPECT) of the brain. Increased uptake of Tc-99m-HMPAO coincided with leptomeningeal enhancement on MR images and with the tumor location of the autopsy findings. It was thought that Tc-99m-HMPAO could correlate closely with melanoma. Tc-99m-HMPAO SPECT clearly showed primary leptomeningeal melanoma and severe hypoperfusion induced by intracranial hypertension and tumor proliferation.

Adult↗