Search results for "COMPUTED TOMOGRAPHY"

showing 10 items of 713 documents

INDIVIDUAZIONE DELL'ARTERIA TRIGEMINALE PERSISTENTE (PTA): RISVOLTI CLINICO-PRATICI

2018

Magnetic Resonance Computed tomography AngiographySettore MED/36 - Diagnostica Per Immagini E Radioterapia
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Comparison between whole-body MRI and PET/CT in staging newly diagnosed FDG-avid lymphomas: our experience.

2015

To compare whole body RMI (WB-RMI) and FDG-PET/CT for staging newly diagnosed FDG-avid lymphoma

Magnetic resonance imagingLymphomaStaging.Diffusion-weighted imagingPositron-emission tomographySettore MED/36 - Diagnostica Per Immagini E RadioterapiaComputed tomography
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Incidence, risk factors, and thrombotic load of pulmonary embolism in patients hospitalized for COVID-19 infection

2021

Summary Objective To determine the incidence, characteristics, and risk factors of pulmonary embolism (PE) among patients hospitalized for COVID-19. Patients and Methods We performed a prospective observational study of a randomly selected cohort of consecutive patients hospitalized for COVID-19 infection between March 8, 2020 through April 25, 2020. All eligible patients underwent a computed tomography pulmonary angiography independently of their PE clinical suspicion and were pre-screened for a baseline elevated D-dimer level. Results 119 patients were randomly selected from the 372 admitted to one tertiary hospital in Valencia (Spain) for COVID-19 infection during the period of study. Se…

Male0301 basic medicineCTPA Computed tomography pulmonary angiographyAUC-ROC Area under curve ROCPCR polymerase chain reaction0302 clinical medicineRisk FactorsspO2 Oxygen saturationIL6 Interleukin-6Pulmonary angiographySD Standard deviationMedicineProspective Studies030212 general & internal medicineProspective cohort studyComputed tomographyFramingham Risk ScoreIncidenceIncidence (epidemiology)RV Right ventricleHazard ratioVenous ThromboembolismMiddle AgedAo Aortic arteryPulmonary embolismCXR chest X-rayHospitalizationInfectious DiseasesCohortCRP C-reactive proteinFemalePA Pulmonary artery trunkMicrobiology (medical)medicine.medical_specialty030106 microbiologysPESI Simplified Pulmonary Embolism Severity IndexBMI Body mass indexPE Pulmonary embolismLV Left ventricleVTE Venous thromboembolismFibrin Fibrinogen Degradation Products03 medical and health sciencesInternal medicineHumansICU Intensive care unitsACE2 Angiotensin converting enzyme-2AgedInflammationLDH Lactate dehydrogenaseSARS-CoV-2 Severe acute respiratory syndrome coronavirus 2CI Confidence intervalbusiness.industryPulmonary embolismCOVID-19AnticoagulantsThrombosisRR Respiratory ratemedicine.diseaseConfidence intervalCHOD CRP concentration + Heart rate + Oxygen saturation + D-dimer levelsSpainHR Hazard RatioCommentarybusinessJournal of Infection
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Functional Activation of Osteoclast Commitment in Chronic Lymphocytic Leukaemia: A Possible Role for RANK/RANKL Pathway

2017

AbstractSkeletal erosion has been found to represent an independent prognostic indicator in patients with advanced stages of chronic lymphocytic leukaemia (CLL). Whether this phenomenon also occurs in early CLL phases and its underlying mechanisms have yet to be fully elucidated. In this study, we prospectively enrolled 36 consecutive treatment-naïve patients to analyse skeletal structure and bone marrow distribution using a computational approach to PET/CT images. This evaluation was combined with the analysis of RANK/RANKL loop activation in the leukemic clone, given recent reports on its role in CLL progression. Bone erosion was particularly evident in long bone shafts, progressively inc…

Male0301 basic medicineChronic lymphocytic leukaemiaClone (cell biology)Osteoclastslcsh:MedicineMice0302 clinical medicineMice Inbred NODBone MarrowPositron Emission Tomography Computed Tomographyhemic and lymphatic diseases80 and overProspective StudiesChroniclcsh:ScienceAged 80 and overSettore ING-IND/24 - Principi Di Ingegneria ChimicaLeukemiaMultidisciplinaryBone Density Conservation AgentsReceptor Activator of Nuclear Factor-kappa BbiologyMiddle AgedLymphocyticLeukemiamedicine.anatomical_structureDenosumabRANKL030220 oncology & carcinogenesisFemaleDenosumabmedicine.drugAdultStromal cellArticle03 medical and health sciencesOsteoclastmedicineAnimalsHumansAgedRANK/RANKL Pathwaybusiness.industryRANK Ligandlcsh:RB-CellDiagnostic markersRANK LigandAdult; Aged; Aged 80 and over; Animals; Bone Density Conservation Agents; Bone Marrow; Denosumab; Female; Glucose; Humans; Leukemia Lymphocytic Chronic B-Cell; Male; Mice Inbred NOD; Middle Aged; Osteoclasts; Positron Emission Tomography Computed Tomography; Prospective Studies; RANK Ligand; Receptor Activator of Nuclear Factor-kappa B; Xenograft Model Antitumor Assaysmedicine.diseaseLeukemia Lymphocytic Chronic B-CellXenograft Model Antitumor AssaysGlucose030104 developmental biologyChronic Lymphocytic Leukaemiabiology.proteinCancer researchInbred NODlcsh:QBone marrowbusiness
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18F-Florbetaben PET/CT to Assess Alzheimer's Disease: A new Analysis Method for Regional Amyloid Quantification.

2019

Background and purpose While AD can be definitively confirmed by postmortem histopathologic examination, in vivo imaging may improve the clinician's ability to identify AD at the earliest stage. The aim of the study was to test the performance of amyloid PET using new processing imaging algorithm for more precise diagnosis of AD. Methods Amyloid PET results using a new processing imaging algorithm (MRI-Less and AAL Atlas) were correlated with clinical, cognitive status, CSF analysis, and other imaging. The regional SUVR using the white matter of cerebellum as reference region and scores from clinical and cognitive tests were used to create ROC curves. Leave-one-out cross-validation was carr…

Male18F-florbetabenAmyloidSensitivity and SpecificityAmyloid-PET Imaging030218 nuclear medicine & medical imagingWhite matter03 medical and health sciences0302 clinical medicineAlzheimer DiseasePositron Emission Tomography Computed Tomographymental disordersStilbenesmedicineImage Processing Computer-AssistedDementiaHumansRadiology Nuclear Medicine and imaging18F-florbetaben; Alzheimer's disease; Amyloid-PET Imaging; MR-lessAgedRetrospective StudiesPET-CTAniline CompoundsReceiver operating characteristicbusiness.industry18F-florbetaben Alzheimer's disease Amyloid-PET Imaging MR-less Aged Alzheimer Disease Female Humans Image Processing Computer-Assisted Magnetic Resonance Imaging Male Positron Emission Tomography Computed Tomography Retrospective Studies Sensitivity and Specificity Aniline Compounds StilbenesAlzheimer's diseasemedicine.diseaseMagnetic Resonance Imagingmedicine.anatomical_structureMR-lessFemaleNeurology (clinical)Differential diagnosisNuclear medicinebusiness030217 neurology & neurosurgeryPreclinical imagingFrontotemporal dementiaJournal of neuroimaging : official journal of the American Society of Neuroimaging
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Prospective Observational Study on acute Appendicitis Worldwide (POSAW)

2018

Acute appendicitis (AA) is the most common surgical disease, and appendectomy is the treatment of choice in the majority of cases. A correct diagnosis is key for decreasing the negative appendectomy rate. The management can become difficult in case of complicated appendicitis. The aim of this study is to describe the worldwide clinical and diagnostic work-up and management of AA in surgical departments.

Male:Medicina Básica [Ciências Médicas]Computed tomography030230 surgery0302 clinical medicineAntibioticsDiagnosisAppendicitiProspective StudiesLaparoscopyProspective cohort studyTomographymedicine.diagnostic_testAcute appendicitis; Antibiotics; Diagnosis; Management; Surgery; Surgery; Emergency MedicineAcute appendicitis; Antibiotics; Diagnosis; Management; Surgery; Acute Disease; Adult; Appendectomy; Appendicitis; Chi-Square Distribution; Female; Hospitalization; Humans; Laparoscopy; Length of Stay; Logistic Models; Male; Prospective Studies; Tomography X-Ray Computed; Treatment OutcomeMortality ratelcsh:Medical emergencies. Critical care. Intensive care. First aidApendicite3. Good healthX-Ray ComputedManagementHospitalizationTreatment Outcome030220 oncology & carcinogenesisCiências Médicas::Medicina BásicaAcute appendicitisAcute DiseaseEmergency MedicineFemaleAcute appendicitis; Antibiotics; Diagnosis; Management; Surgery; Acute Disease; Adult; Appendectomy; Appendicitis; Chi-Square Distribution; Female; Hospitalization; Humans; Laparoscopy; Length of Stay; Logistic Models; Male; Prospective Studies; Tomography X-Ray Computed; Treatment Outcome; Surgery; Emergency MedicineDiagnosiHumanResearch ArticleAdultmedicine.medical_specialtyLogistic Modellcsh:SurgeryNO03 medical and health sciencesmedicineAppendectomyHumansAcute appendicitisChi-Square Distributionbusiness.industryGeneral surgeryAntibioticAcute appendicitis; Antibiotics; Diagnosis; Management; Surgerylcsh:RD1-811lcsh:RC86-88.9Length of Staymedicine.diseaseAppendicitisAppendicitisProspective StudieLogistic ModelsObservational studyLaparoscopySurgeryAcute appendicitibusinessTomography X-Ray ComputedChi-squared distributionWorld Journal of Emergency Surgery
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Influence of image reconstruction parameters on cardiovascular risk reclassification by Computed Tomography Coronary Artery Calcium Score

2018

Objective: To investigate the influence of different CT reconstruction parameters on coronary artery calcium scoring (CACS) values and reclassification of predicted cardiovascular (CV) risk. Methods: CACS was evaluated in 113 patients undergoing ECG-gated 64-slice CT. Reference CACS protocol included standard kernel filter (B35f) with slice thickness/increment of 3/1.5 mm, and field-of-view (FOV) of 150–180 mm. Influence of different image reconstruction algorithms (reconstructed slice thickness/increment 2.0/1.0–1.5/0.8–3.0/2.0–3.0/3.0 mm; slice kernel B30f-B45f; FOV 200–250 mm) on Agatston score was assessed by Bland-Altman plots and concordance correlation coefficient (CCC) ana…

MaleAccuracy and precisionRadiology Nuclear Medicine and ImagingCardiac computed tomographyComputed Tomography AngiographyComputed tomographyIterative reconstructionCoronary Artery Disease030204 cardiovascular system & hematologyRisk Assessment030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicineImage reconstruction algorithmRisk FactorsImage Processing Computer-AssistedMedicineHumansReconstruction parameterProspective StudiesVascular CalcificationAgedReconstruction parametersmedicine.diagnostic_testCoronary artery calcium scorebusiness.industryCoronary artery calcium scoreCardiovascular risk classificationGeneral MedicineMiddle AgedCardiovascular riskConcordance correlation coefficientCardiovascular DiseasesCardiac computed tomography; Cardiovascular risk; Cardiovascular risk classification; Coronary artery calcium score; Reconstruction parametersFemalebusinessAgatston scoreNuclear medicineSettore MED/36 - Diagnostica Per Immagini E RadioterapiaCoronary Artery Calcium ScoringAlgorithms
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Coronary artery calcium and physical performance as determinants of mortality in older age: The AGES-Reykjavik Study

2013

Background. Coronary artery calcium (CAC) and physical performance have been shown to be associated with mortality, but it is not clear whether one of them modifies the association. We investigated the association between the extent of CAC and physical performance among older individuals and explored these individual and combined effects on cardiovascular disease (CVD) mortality and non-CVD mortality. Methods. We studied 4074 participants of the AGES–Reykjavik Study who were free from coronary heart disease, had a CAC score calculated from computed tomography scans and had data on mobility limitations and gait speed at baseline in 2002–2006 at a mean age of 76 years. Register-based mortalit…

MaleAgingcardiovascular disease risk factorsEpidemiologyIcelandikääntyneet henkilötDiseaseCoronary Artery DiseaseCoronary artery calcificationCardiovascular disease risk factorsCoronary AngiographySeverity of Illness IndexCoronary artery diseaseRisk FactorsEpidemiologyProspective StudiesepidemiologiaProspective cohort studyAge FactorsCalcinosista3141Coronary VesselsSurvival RateCoronary artery calciumCardiologyfyysinen suorituskykyFemaleCardiology and Cardiovascular Medicinekuolleisuusmedicine.medical_specialtyateroskleroosisepelvaltimoiden kalkkeumaMotor ActivityArticleInternal medicineSeverity of illnessMultidetector Computed TomographymedicineHumanscardiovascular diseasesMortalitySurvival rateAgedbusiness.industryagingnutritional and metabolic diseasesmedicine.diseaseAtherosclerosisGaitcoronary artery calcificationSurgeryCalciumbusinessTomography X-Ray ComputedFollow-Up StudiesInternational Journal of Cardiology
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Quantitative analysis of modified functional muscle–bone unit and back muscle density in patients with lumbar vertebral fracture in Chinese elderly m…

2018

Objectives: Bone mineral density (BMD) is associated with muscle mass and quality, but little research has been done on functional muscle–bone unit and back muscle density in patients with lumbar vertebral fracture. This study used the “modified functional muscle–bone unit” concept and measured back muscle density to investigate muscle–bone interaction difference between the fracture and control group. Methods: This was a case–control study. A total of 52 elderly male patients (mean age 75 years) with lumbar vertebral fracture (cases) and 52 control healthy subjects were enrolled. Cross-sectional area (CSA) and density of paravertebral muscle were measured in quantitative computed tomograph…

MaleAgingmedicine.medical_specialtyChinaLumbar vertebral fractureUrology03 medical and health sciences0302 clinical medicineBone DensitymedicineOdds RatioHumansIn patient030212 general & internal medicineFunctional muscle–bone unitQuantitative computed tomographyQuantitative computed tomographyLumbar Vertebral FractureAgedFunctional muscle–bone unit · Muscle density · Lumbar vertebral fracture · Quantitative computed tomographyBone mineralAged 80 and overLumbar Vertebraemedicine.diagnostic_testbusiness.industryBack MusclesCase-control studyOdds ratioConfidence intervalCross-Sectional StudiesCase-Control StudiesMuscle densitySpinal FracturesGeriatrics and GerontologybusinessTomography X-Ray ComputedQuantitative analysis (chemistry)030217 neurology & neurosurgery
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Mid-term results of zone 0 thoracic endovascular aneurysm repair after ascending aorta wrapping and supra-aortic debranching in high-risk patients

2017

Objectives Surgical repair of aneurysmal disease involving the ascending aorta, aortic arch and eventually the descending aorta is generally associated with significant morbidity and mortality. A less invasive approach with the ascending wrapping technique (WT), supra-aortic vessel debranching (SADB) and thoracic endovascular aneurysm repair (TEVAR) in zone 0 was developed to reduce the associated risk in these patients. Methods During a 10-year period, consecutive patients treated by the ascending WT, SADB and TEVAR in zone 0 were included. All patients were considered at high risk for conventional surgery. Measured outcomes included perioperative deaths and morbidity, maximal aortic trans…

MaleAortic archTime FactorsComputed Tomography AngiographyAneurysm; Arch; Ascending; Debranching; TEVAR; Wrapping; Surgery; Pulmonary and Respiratory Medicine; Cardiology and Cardiovascular Medicinemedicine.medical_treatmentWrapping030204 cardiovascular system & hematologyEndovascular aneurysm repairPostoperative Complications0302 clinical medicineRisk FactorsAscendingThoracic aorta030212 general & internal medicineAortaAged 80 and overTEVAR10042 Clinic for Diagnostic and Interventional RadiologyEndovascular ProceduresMiddle Aged2746 SurgeryItalyDescending aortaCardiologyFemaleCardiology and Cardiovascular MedicinePulmonary and Respiratory Medicinemedicine.medical_specialty10216 Institute of Anesthesiology610 Medicine & healthArch2705 Cardiology and Cardiovascular Medicine03 medical and health sciencesAneurysmBlood vessel prosthesismedicine.arteryInternal medicineAscending aortamedicineHumansAgedAortaAortic Aneurysm Thoracicbusiness.industryDebranchingmedicine.diseaseAneurysmBlood Vessel ProsthesisSurgery10020 Clinic for Cardiac Surgery2740 Pulmonary and Respiratory MedicineSurgeryMorbiditybusinessFollow-Up Studies
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