Search results for "CORONARY ARTERY"

showing 10 items of 693 documents

Erfahrungen mit einer 3D-Navigatorsequenz zur Koronargefäßdarstellung an einem Hochleistungs-MR-System

2002

Purpose: To evaluate MR coronary angiography using a three-dimensional navigator echo sequence on a MR scanner with a high performance gradient system. Material and Methods: Five healthy volunteers were examined with a 1.5 Tesla MR system, using a high performance prototype gradient system (peak amplitude 50 mT/m, rising time 600 μs). For imaging, a navigated gradient-echo pulse sequence with an in-plane resolution between 0.63 × 0.63 and 0.78 × 0.78 mm 2 was used. Per patient two overlapping slabs were acquired. The number of visualised coronary artery segments was estimated (AHA classification). In addition, signal-to-noise measurements were performed in the ascending aorta at the level o…

Coronary angiographymedicine.medical_specialtybusiness.industryCoronary arteriesmedicine.anatomical_structureLeft coronary arteryNavigator echoRight coronary arterymedicine.arteryAscending aortamedicineRadiology Nuclear Medicine and imagingRadiologybusinessNuclear medicineVolunteerArteryRöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren
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Quantitative Coronary Angiography and Digital Densitometric Perfusion Measurements?How to Assess the Success of Intracoronary Balloon Dilatation

1988

Densitometric evaluation of digital subtraction angiocardiograms allows the assessment of local myocardial perfusion before and after pharmacological stimulation of coronary flow reserve during the catheterization procedure. This report deals with a case of a severe stenosis of the left coronary artery in which PTCA was regarded successful based on an appropriate increase in luminal diameter while an intima and media dissection at the dilatation site was documented. The perfusion measurements, however, pointed out a clear impairment of poststenotic myocardial perfusion after PTCA.

Coronary angiographymedicine.medical_specialtybusiness.industryCoronary flow reserveDissection (medical)medicine.diseaseBalloon dilatationLeft coronary arteryCatheterization proceduremedicine.arteryInternal medicineCardiologyMedicineRadiology Nuclear Medicine and imagingcardiovascular diseasesRadiologySevere stenosisCardiology and Cardiovascular MedicinebusinessPerfusionJournal of Interventional Cardiology
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Lesions of Proximal Coronary Arteries

2009

Coronary artery disease (CAD) remains the leading cause of death in the Western world. Conventional coronary angiography (CCA) is the gold standard method for evaluation of the vascular lumen and provides excellent results in demonstrating stenotic lesions of CAD. However, it is an invasive procedure with a small risk of fatal events. Furthermore, CCA is a lumen-oriented technique that does not permit a direct visualization and evaluation of the coronary artery wall. The characterization of coronary plaques without a significant lumen narrowing is also not feasible with CCA. This information is relevant since the comparison of angiographic studies of coronary arteries performed before and a…

Coronary angiographymedicine.medical_specialtybusiness.industryLumen (anatomy)medicine.diseaseCoronary artery diseaseCoronary arteriesCoronary artery diseaseStenosismedicine.anatomical_structureCT Coronary AngiographyInternal medicinemedicineCardiologycardiovascular diseasesMyocardial infarctionbusinessSettore MED/36 - Diagnostica Per Immagini E RadioterapiaArteryCause of death
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High-Frequency Rotational Angioplasty

1991

In 19 patients with significant coronary artery disease, PTCR was used instead of PTCA. The PTCR was successful in all patients, but in nine patients additional PTCA was successfully performed. Coronary luminal narrowing could be reduced from 78 ± 19% to 32 ± 14% after rotablation and by combined treatment to 21 ± 14%. Only in one patient did coronary dissection occur; the patient was sent to surgery and had an uneventful outcome. No vessel perforation was observed. In one patient peripheral diagonal branch occlusion occurred. All vessels were open according to 24-control coronary angiography. Restenosis (>70% stenosis) occurred in 4/15 patients controlled after 6 months, mainly in those wi…

Coronary angiographymedicine.medical_specialtybusiness.industrymedicine.medical_treatmentmedicine.diseasePeripheralAtherectomyCoronary artery diseaseStenosisRestenosisInternal medicineAngioplastyOcclusionmedicineCardiologybusiness
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CT coronary angiography at an ultra-low radiation dose (< 0.1 mSv): feasible and viable in times of constraint on healthcare costs

2013

Computed tomography coronary angiography (CTCA) has reached very high standards both in terms of diagnostic performance and radiation dose reduction. This commentary follows a report on CTCA using less than 0.1 mSv in selected patients. This is an extraordinary accomplishment, both for technology and for medicine. The difficult task is now to implement this tool in clinical practice so it can play the best possible role. CTCA can improve diagnostic pathways, can save money for healthcare systems and could even improve pharmacological therapy. All of this may happen, but it will require the combined effort of all the experienced operators in this field, including the referring clinicians. In…

Coronary angiographymedicine.medical_specialtylow radiation dosePharmacological therapyCT coronary angiographyCoronary Artery DiseaseCoronary AngiographyRadiation DosageSensitivity and Specificityhealthcare costsRadiation ProtectionHealth careCardiac CTHumansMedicineLow dose ctRadiology Nuclear Medicine and imagingMedical physicsConstraint (mathematics)Neuroradiologymedicine.diagnostic_testbusiness.industryscreeningRadiation doseReproducibility of ResultsInterventional radiologyHealth Care CostsGeneral MedicineUnited StatesFeasibility StudiesRadiologyTomography X-Ray ComputedbusinessEuropean Radiology
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Defining Kawasaki disease and pediatric inflammatory multisystem syndrome-temporally associated to SARS-CoV-2 infection during SARS-CoV-2 epidemic in…

2021

Abstract Background There is mounting evidence on the existence of a Pediatric Inflammatory Multisystem Syndrome-temporally associated to SARS-CoV-2 infection (PIMS-TS), sharing similarities with Kawasaki Disease (KD). The main outcome of the study were to better characterize the clinical features and the treatment response of PIMS-TS and to explore its relationship with KD determining whether KD and PIMS are two distinct entities. Methods The Rheumatology Study Group of the Italian Pediatric Society launched a survey to enroll patients diagnosed with KD (Kawasaki Disease Group – KDG) or KD-like (Kawacovid Group - KCG) disease between February 1st 2020, and May 31st 2020. Demographic, clini…

Coronary artery abnormalities; Hypotension; Kawasaki disease; Multisystem inflammatory syndrome associated with coronavirus disease; Myocarditis; Pediatric inflammatory multisystem syndrome-temporally associated to SARS-CoV-2 infection; SARS-CoV-2; Age Distribution; Antirheumatic Agents; Aspirin; C-Reactive Protein; COVID-19; Child; Child Preschool; Coronary Artery Disease; Cough; Diarrhea; Dyspnea; Female; Glucocorticoids; Heart Failure; Humans; Hyperferritinemia; Hypotension; Immunoglobulins Intravenous; Immunologic Factors; Infant; Intensive Care Units Pediatric; Interleukin 1 Receptor Antagonist Protein; Italy; Lymphopenia; Male; Mucocutaneous Lymph Node Syndrome; Myocarditis; Platelet Aggregation Inhibitors; SARS-CoV-2; Shock; Systemic Inflammatory Response Syndrome; Tachypnea; Troponin T; VomitingMalelcsh:Diseases of the musculoskeletal systemcoronary artery abnormalities; hypotension; kawasaki disease; multisystem inflammatory syndrome associated with coronavirus disease; myocarditis; pediatric inflammatory multisystem syndrome-temporally associated to SARS-CoV-2 infection; SARS-CoV-2; age distribution; antirheumatic agents; aspirin; C-reactive protein; COVID-19; child ; preschool; coronary artery disease; cough; diarrhea; yspnea; female; glucocorticoids; heart failure; humans; hyperferritinemia; hypotension; immunoglobulins; intravenous; immunologic factors; infant; intensive care units; pediatric; interleukin 1 receptor antagonist protein; italy; lymphopenia; male; mucocutaneous lymph node syndrome; myocarditis; platelet aggregation inhibitors; SARS-CoV-2; shock; systemic inflammatory response syndrome; tachypnea; troponin T; vomitingMyocarditiCoronary Artery Disease030204 cardiovascular system & hematologySARS-CoV-2 Kawasaki disease Pediatric inflammatory multisystem syndrome-temporally associated to SARS-CoV-2 infection Myocarditis Hypotension Multisystem inflammatory syndrome associated with coronavirus disease Coronary artery abnormalitiesCoronary artery diseaseSettore MED/38 - Pediatria Generale E Specialistica0302 clinical medicineGlucocorticoidImmunologic FactorMultisystem inflammatory syndrome associated with coronavirus diseaseImmunology and AllergyChildCoronary artery abnormalitieFisher's exact testPediatricTachypneabiologylcsh:RJ1-570Antirheumatic AgentImmunoglobulins IntravenousShockPediatric inflammatory multisystem syndrome-temporally associated to SARS-CoV-2 infectionSettore MED/38Systemic Inflammatory Response SyndromeIntensive Care UnitsMyocarditisC-Reactive ProteinItalyAntirheumatic AgentsChild PreschoolCohortsymbolsPlatelet aggregation inhibitorFemaleHypotensionIntravenousCoronary artery abnormalitiesHumanResearch ArticleDiarrheamedicine.medical_specialtyMyocarditisVomitingImmunoglobulinsMucocutaneous Lymph Node SyndromeIntensive Care Units Pediatric03 medical and health sciencessymbols.namesakeAge DistributionRheumatologyTroponin TInternal medicineLymphopeniamedicineHumansImmunologic FactorsPreschoolGlucocorticoids030203 arthritis & rheumatologyHeart FailureAspirinKawasaki diseasebusiness.industrySARS-CoV-2Platelet Aggregation InhibitorC-reactive proteinCOVID-19Infantlcsh:Pediatricsmedicine.diseaseSystemic inflammatory response syndromeInterleukin 1 Receptor Antagonist ProteinDyspneaCoughImmunoglobulins IntravenouPediatrics Perinatology and Child Healthbiology.proteinKawasaki diseaseHyperferritinemialcsh:RC925-935businessPlatelet Aggregation InhibitorsPediatric rheumatology online journal
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When Periods Stop: Long-Term Consequences of PCOS

2009

Coronary artery calciummedicine.medical_specialtybusiness.industryInternal medicineEndometrial cancermedicineCardiologybusinessmedicine.diseasePolycystic ovaryTerm (time)
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INFLUENCE OF INTRA-CORONARY ENHANCEMENT ON DIAGNOSTIC ACCURACY WITH 64-SLICE CT CORONARY ANGIOGRAPHY

2008

We assessed the effect of intra-coronary attenuation on diagnostic accuracy using 64-slice computed tomography coronary angiography (CT-CA). We enrolled 170 patients with suspected coronary artery disease who underwent conventional coronary angiography (CA) and 64-slice CT-CA (100 ml of Iomeprol 400 mg I/ml at 4 ml/s). The study population was divided into two groups (85 patients each based on median attenuation of 326 HU) based on mean arterial attenuation; group 1 with low attenuation and group 2 with high attenuation. Diagnostic accuracy for the detection of significant coronary artery stenosis was determined for both groups using CA as reference standard. Overall, 163 significant stenos…

Coronary artery disease . Coronary angiography . Multislice computed tomography . Iodine concentration . Diagnostic accuracySettore MED/36 - Diagnostica Per Immagini E Radioterapia
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Low N-Terminal pro-B-type Natriuretic Peptide (NT-proBNP) longitudinally predicts elevated anxiety in depressed patients with coronary artery disease

2016

Coronary artery diseasePsychiatry and Mental healthClinical Psychologymedicine.medical_specialtybusiness.industryInternal medicinemedicineCardiologyAnxietyN terminal pro b type natriuretic peptidemedicine.symptommedicine.diseasebusinessJournal of Psychosomatic Research
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Risk Factors in Peripheral Artery Disease Associated with Coronary Artery Disease

2019

Abstract Peripheral arterial disease (PAD) is a partial or complete occlusion of one or more arteries leading to a suppression of blood flow and ischemia. In the process of stenosis, numerous processes are described, among which, the most common being atherosclerosis, affecting the arteries of the inferior and coronary limbs. In the 60 patients investigated angio-coronarographically in the Emergency County Clinical Hospital of Sibiu with PAD, the prevalence of high blood pressure (HBP) and smoking was observed, among the risk factors, and 73.3% had one or more coronary lesions. The association of diabetes mellitus (DM) with PAD has shown an increase in the number of coronary lesions. There …

Coronary artery diseasemedicine.medical_specialtyArterial diseasebusiness.industryInternal medicinemedicineCardiologyGeneral MedicineDiseasemedicine.diseasebusinessActa Medica Transilvanica
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