Results 1 to 10 of about 1,928 (197)

A Parametric Study of Flushing Conditions for Improvement of Angioscopy Visibility

Journal of Functional Biomaterials, 2022
During an angioscopy operation, a transparent liquid called dextran is sprayed out from a catheter to flush the blood away from the space between the camera and target. Medical doctors usually inject dextran at a constant flow rate.
Yujie Li, Makoto Ohta, Mingzi Zhang
exaly   +4 more sources

Association Between Aortic Wall Parameters on Multidetector Computed Tomography and Ruptured Plaques By Nonobstructive General Angioscopy [PDF]

Journal of the American Heart Association
Background Nonobstructive general angioscopy (NOGA) can identify vulnerable plaques in the aortic lumen that serve as potential risk factors for cardiovascular events such as embolism.
Masatsugu Miyagawa, Keisuke Kojima
exaly   +4 more sources

Efficacy of Angioscopy for the Detection of Mobile Carotid Artery Lesions

Stroke: Vascular and Interventional Neurology, 2023
Case presentation A 78‐year‐old man with a mobile lesion was diagnosed with thrombus using carotid ultrasonography, but the lesion was not completely resolved with dual antiplatelet and anticoagulation therapy. Direct visualization by angioscopy showed a
Kenji Fukutome, Shuta Aketa, Takaaki Mitsui, Yuki Shiraishi, Hiromichi Hayami, Yasutaka Murakami, Ryuta Matsuoka, Mikio Shiba, Rinsei Tei, Yasushi Shin, Yasushi Motoyama   +10 more
doaj   +2 more sources

Thrombus or tumor?

Clinical Case Reports, 2023
Key clinical message Contrast defects in veins are often diagnosed as benign thrombi, but depending on the patient’s background it is necessary to differentiate between tumor thrombi. It is difficult to differentiate between these using contrast‐enhanced
Shiho Wakasa, Hiroya Hayashi, Takanori Yamazaki, Yasuhiro Izumiya, Daiju Fukuda   +4 more
doaj   +2 more sources

Intracoronary Thrombogenicity in Patients with Vasospastic Angina: An Observation Using Coronary Angioscopy

Diagnostics, 2021
Background: Despite significant interest in intracoronary thrombi in patients with vasospastic angina (VSA), the phenomenon remains unclarified. Therefore, we investigated a possible relationship using coronary angioscopy (CAS) in VSA patients.
Hiroki Teragawa, Yuichi Orita, Chikage Oshita   +2 more
exaly   +3 more sources

Case report: Usefulness of angioscopy in determining antiplatelet drug reduction after carotid artery stenting [PDF]

Frontiers in Neurology, 2023
We report a case in which neointima was confirmed by angioscopy and antiplatelet drug administration was reduced 2 months after carotid artery stenting (CAS).
Kenji Fukutome, Mikio Shiba, Shuta Aketa, Takaaki Mitsui, Yuki Shiraishi, Hiromichi Hayami, Yasutaka Murakami, Ryuta Matsuoka, Rinsei Tei, Yasushi Shin, Yasushi Motoyama   +10 more
doaj   +2 more sources

Immediate Angioscopic Investigation After Cerebral Artery Thrombectomy Revealed Aortogenic Cerebral Infarction

Stroke: Vascular and Interventional Neurology, 2023
Background Aortogenic embolism is one of the causes of embolic stroke of undetermined source, which can be difficult to diagnose. Methods We present the case of a 74‐year‐old male patient with a history of Bentall surgery and thoracic endovascular aortic
Kenji Fukutome, Mikio Shiba, Takaaki Mitsui, Yuma Hamanaka, Hironao Yasuoka, Shuta Aketa, Yasushi Motoyama, Atsushi Hirayama, Yoshiharu Higuchi   +8 more
doaj   +1 more source

Efficacy of non-obstructive aortic angioscopy for detecting a thoracic aortic graft rupture: a case report

Surgical Case Reports, 2022
Background Non-anastomotic thoracic aortic graft rupture is extremely rare and difficult to diagnose. Non-obstructive general angioscopy can help monitor the aortic intima and detect the locations of abnormal findings, while aortic angioscopy can detect ...
Fumio Yamana, Koichi Maeda, Yuma Hamanaka, Noriko Kodani, Keitaro Domae, Masatoshi Hata, Yoshiharu Higuchi, Yukitoshi Shirakawa, Takafumi Masai   +8 more
doaj   +1 more source

Angioscopic Evaluation of Atrial Septal Defect Closure Device Neo‐Endothelialization

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2021
Background Current guidelines recommend at least 6 months of antithrombotic therapy and antibiotic prophylaxis after septal‐occluding device deployment in transcatheter closure of atrial septal defect.
Yasuhiro Tanabe, Tomomi Suzuki, Shingo Kuwata, Masaki Izumo, Hiromasa Kawaguchi, Shun Ogoda, Nozomi Kotoku, Yukio Sato, Haruka Nishikawa, Toshiki Kaihara, Masashi Koga, Takanobu Mitarai, Kazuaki Okuyama, Ryo Kamijima, Yuki Ishibashi, Kihei Yoneyama, Takumi Higuma, Tomoo Harada, Yoshihiro J. Akashi   +18 more
doaj   +1 more source

Is a thin diameter ureteroscope feasible for image guided intravascular procedures?

Current Directions in Biomedical Engineering, 2020
Vascular endoscopic imaging is known for a long time but has never made its way into clinical routine. Reasons for that are the complexity, lack of low-cost portable systems, and the lack of suitable endoscopes providing high image quality with small ...
Boese Axel, Friebe Michael
doaj   +1 more source