Akira Oshita
Kagawa University
Provocation testRadiologyPathologyMagnetic resonance imagingUltrasoundCardiologyArteryAcute coronary syndromeInfiltration (medical)Heart failureRestenosisAnginaChest painStenosisPercutaneous coronary interventionAngioscopyThrombusMyocardial infarctionMicrobubblesMedicine
52Publications
9H-index
348Citations
Publications 49
Newest
#1Akira OshitaH-Index: 9
#2Yusuke KonoH-Index: 1
Last. Hideo KawakamiH-Index: 15
view all 7 authors...
A 77-year-old man with symptoms of chest pain was diagnosed with immunoglobulin G4 (IgG4)-related disease. Fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) revealed an intense uptake in the submandibular gland, lymph nodes and abdominal aortic wall. Diffusion-weighted imaging with background body signal suppression (DWIBS) revealed signal enhancements at the same location as those of the FDG-PET/CT findings. The DWIBS signal intensity decreased after steroid treat...
1 CitationsSource
#1Toru MiyoshiH-Index: 31
#2Hiroyuki Hao (Nihon University)H-Index: 22
Last. Hiroshi MatsuokaH-Index: 12
view all 6 authors...
Source
#1Toru MiyoshiH-Index: 31
#2Hideo KawakamiH-Index: 15
Last. Hiroshi MatsuokaH-Index: 12
view all 9 authors...
Abstract A 39-year-old woman developed a pulmonary embolism at 28 weeks of gestation, after a 4-week period of bedrest, and required emergencycesarean section due to a decrease in fetal heart rate. Pulseless electrical activity (PEA) developed after intravenous anesthesia. The fetus was delivered 5 min after PEA onset, during cardiopulmonary resuscitation of the mother. Intravenous recombinant tissue-plasminogen activator injection, percutaneous cardiopulmonary support, and 24-h hypothermia ther...
2 CitationsSource
1 CitationsSource
#1Akira OshitaH-Index: 9
#2Hideo KawakamiH-Index: 15
Last. Hiroshi MatsuokaH-Index: 12
view all 6 authors...
Abstract Coronary high-intensity plaques (HIPs) visualized by non-contrast T1-weighted imaging (T1WI) in cardiac magnetic resonance (CMR) are associated with slow-flow phenomena during percutaneous coronary intervention (PCI). We report a case of a 52-year-old man who had undergone left anterior descending artery stent implantation for unstable angina 5 years previously. He underwent CMR imaging for screening of vulnerable plaques. A lesion in the proximal right coronary artery showed HIP on non...
1 CitationsSource
#1Akira OshitaH-Index: 9
#2Hideo KawakamiH-Index: 15
Last. Hiroshi MatsuokaH-Index: 12
view all 5 authors...
Abstract Background A recent study showed that coronary high-intensity plaques (HIPs) visualized by noncontrast T1-weighted imaging (T1WI) in cardiac magnetic resonance were associated with coronary events. We used coronary angioscopy to analyze HIP plaque morphology. Methods and results A total 17 lesions from 17 patients with stable or unstable angina pectoris were evaluated at the culprit lesion by noncontrast T1WI using 1.5-T magnetic resonance; of them, nine (53%) were HIPs and eight (47%) ...
6 CitationsSource
#1Toru MiyoshiH-Index: 31
#2Hideo KawakamiH-Index: 15
Last. Hiroshi MatsuokaH-Index: 12
view all 5 authors...
Background Tissue protrusion detected with optical coherence tomography after percutaneous coronary intervention using stents is one of the risk factors for early stent thrombosis. However, tissue protrusion features have not been described. The aim of this study was to compare tissue morphology at stented sites with or without tissue protrusion by using coronary angioscopy. Methods Using optical coherence tomography and coronary angioscopy, we assessed 42 patients [31 men, 11 women; age, 70.7 ±...
7 CitationsSource
#1Toru MiyoshiH-Index: 31
#2Fumiyasu Seike (Ehime University)H-Index: 5
Last. Hiroshi MatsuokaH-Index: 12
view all 5 authors...
Source
#1Akira OshitaH-Index: 9
#2Hideo KawakamiH-Index: 15
Last. Hiroshi MatsuokaH-Index: 12
view all 5 authors...
Abstract Coronary high-intensity plaques (HIPs) visualized by non-contrast T1-weighted imaging (T1WI) in cardiac magnetic resonance (CMR) were associated with coronary events. We report a case of a 68-year-old man with an old myocardial infarction. He had undergone CMR to exclude new coronary artery disease, because he sometimes had an atypical chest symptom. The moderate stenosis in the right coronary artery (RCA) showed non HIP on non-contrast T1WI. We observed HIP in the proximal left anterio...
Source
#1Toru MiyoshiH-Index: 31
#2Hideo KawakamiH-Index: 15
Last. Hiroshi MatsuokaH-Index: 12
view all 4 authors...
Abstract A 67-year-old man was admitted to our hospital due to chest pain at rest. Seven years previously, the patient underwent percutaneous coronary intervention (PCI) of the left ascending artery and implanted sirolimus-eluting stent (SES). Coronary angioscopy (CAS) performed at that time showed a white plaque at the SES site. Two years after the first PCI, repeat CAS demonstrated light yellow plaques at the SES site. At the time of his presentation to our hospital, coronary angiography showe...
5 CitationsSource