نتایج جستجو برای: angiographic

تعداد نتایج: 12239  

Journal: :British heart journal 1981
P Ko D R Boughner W J Paulsen J A Persaud

A transparent grid for estimating peak Vcf directly from the echocardiograph recording is described. Estimates so obtained were compared with peak Vcf measurements made by an echocardiographic digitising technique and with the angiographic ejection fraction in 13 patients with normal left ventricular function and 17 patients with impaired left ventricular function. No patient had angiographic s...

2011
M.J.Rastegar Fatemi Seyed Mostafa Mirhassani Elham Ghasemi

In this paper a method for Detection of narrowed coronary arteries in X-ray Angiographic images is addressed. For this purpose firstly coronary arteries are segmented base on some probability masks which indicates the membership function of being a vessel for each pixel in the image. In order to build the membership functions whole of angiographic frames in the sequence are utilized. To this ai...

Journal: :Circulation journal : official journal of the Japanese Circulation Society 2013
Jun Yamashita Nobuhiro Tanaka Hiroshi Fujita Takashi Akasaka Tadateru Takayama Yuji Oikawa Toru Kataoka Akira Yamashina

BACKGROUND In recent years there has been a debate about the functional severity of restenosis of drug-eluting stents. The aim of the present study was to assess the functional severity of stenosis in patients with moderate angiographic restenosis after paclitaxel-eluting stents (PES) deployment. METHODS AND RESULTS Forty-two patients with moderate angiographic restenosis at the in-stent segm...

Journal: :AJNR. American journal of neuroradiology 1987
D J Loes W R Smoker J Biller S H Cornell

Cerebral angiography in patients with nontraumatic lobar intracerebral hemorrhage may or may not uncover the underlying cause of the disorder. The CT and cerebral angiographic studies of 67 consecutive patients with nontraumatic lobar intracerebral hemorrhage were reviewed to assess the relationship between CT pattern and location of hemorrhage and the frequency of diagnostic angiographic findi...

Journal: :Circulation. Cardiovascular interventions 2010
Carlos Oviedo Akiko Maehara Gary S Mintz Hiroshi Araki So-Yeon Choi Kenichi Tsujita Takashi Kubo Hiroshi Doi Barry Templin Alexandra J Lansky George Dangas Martin B Leon Roxana Mehran Seung Jea Tahk Gregg W Stone Masahiko Ochiai Jeffrey W Moses

BACKGROUND Angiographic classifications of the location and severity of disease in the main vessel and side branch of coronary artery bifurcations have been proposed and applied to distal left main coronary artery (LMCA) bifurcation. METHODS AND RESULTS We reviewed 140 angiograms of distal LMCA and ostial left anterior descending (LAD) and left circumflex (LCX) artery lesions with preinterven...

Journal: :Bulletin of emergency and trauma 2014
Hassan Ravari Masoud Pezeshki Rad Aria Bahadori Orkideh Ajami

OBJECTIVE To compare the conventional angiographic findings in extremity trauma patients with or without runoff. METHODS This was cross-sectional study including all the patients with extremity trauma who underwent conventional angiography during the 2 year period from 2011 to 2013 in Angiography departments of Mashhad University of Medical Sciences. Mechanism of trauma, type of injury and an...

Journal: :AJNR. American journal of neuroradiology 2009
S I Park B M Kim D I Kim Y S Shin S H Suh E C Chung S Y Kim S H Kim Y S Won

BACKGROUND AND PURPOSE Little has been known about the clinical and angiographic follow-up results of stent-only therapy for intracranial vertebrobasilar dissecting aneurysms (VBDA). The purpose of this study was to evaluate the feasibility, safety, clinical, and angiographic follow-up of stent-only therapy for VBDA. MATERIALS AND METHODS Twenty-seven patients with 29 VBDAs (11 ruptured, 18 u...

Journal: :AJNR. American journal of neuroradiology 2002
Shinichi Tamatani Yasushi Ito Hiroshi Abe Tetsuo Koike Shigekazu Takeuchi Ryuichi Tanaka

BACKGROUND AND PURPOSE The long-term outcome of aneurysmal coil embolization has not been determined. We retrospectively analyzed the results of our cases treated with detachable coils and evaluated the long-term stability of embolized aneurysms. METHODS This study involved 100 aneurysms in 93 patients who underwent follow-up angiography > or = 3 months after initial treatment between Decembe...

Journal: :European heart journal 2004
Amit Segev Saleem Kassam Christopher E Buller Herbert K Lau John D Sparkes Philip W Connelly Peter H Seidelin Madhu K Natarajan Eric A Cohen Bradley H Strauss

AIMS Inflammatory markers may serve as an important prognostic predictor in patients with coronary heart diseases. In patients undergoing coronary interventions, it has been shown that baseline C-reactive protein (CRP) could predict late clinical restenosis. Only a few small studies have examined the possible relationship with angiographic restenosis. In patients with stable angina pectoris,we ...

Journal: :Circulation 1975
R L Sweet R E Moraski R O Russell C E Rackley

Twenty-four patients with proven coronary artery disease and abnormally-contracting segments were studied by both echocardiography and biplane angiographic techniques. Comparison was made between the left ventricular biplane angiographic volumes and those obtained from echocardiographic measurements which were calculated from cubed function and regression equaltion methods. The percent abnormal...

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