Search results for "ct scan"

showing 8 items of 18 documents

Diagnosis and therapeutic management of primary headache in an emergency setting

2013

Introduction and aim: Much headachers are under or mis-diagnoses and data regarding the proportion of patients attending an emergency department (ED) because of headache are still few. We conducted a retrospective observational study in an ED with the following aims: (a) estimate the proportion of headache attending to an ED (b) to estimate and describe the therapeutic management of primary headache and (c) to assessment the exam most frequently requested. Materials and methods: We collected data regarding patients diagnosed with headache consecutively attending the ED of the University of Palermo between September 2011 and March 2012. The study was approved by the ethics committee. Results: Between the semester evaluated 25110 subjects were admitted to ED headache suffers were equal to 1.6 %. Of these 263 (63.1 %) were woman and 154 (36.9 %). Mean age was 44.2 (DS ± 18.4) years (p = 0.068).According to ED registry headache admission was as follow assigned: 76.5 % with a diagnosis of headache 22.8 % with a secondary headache 0.7 % with Trigeminal Autonomic Cephalgias (TACs). Among those with a primary headache about 36 % of patient did not received a pharmacological treatment. Monotherapy was prescribed less frequently than combination therapy (19.1 vs 44.5 %).In monotherapy the most frequent medication were NSAIDs (28.3 %) benzodiazepines (26.7 %) and dopamine antagonists (11.7 %). Among those with a primary headache a CT scan was performed in the 124 subjects and 111 (34.8 %) had a neurologist consultation. Discussion: Our data are in line with the one previously reported in literature. The most frequently medication in the Italian ED were NSAIDs benzodiazepines dopamine antagonists and steroids. Neverless our data unlikely can be compared to other study give a snapshot. We believe that much more can be done to improve treatment of primary headache in ED.Settore MED/26 - Neurologia
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3D CT scan for perioperative identification of anatomical variations of lungs.

2016

Aim: The aim of this study is to investigate anatomical lung variations and vascular patterns using volumetric 3D computed tomography (CT) representations. Methods & results: We considered 24 major thoracic surgery performed in our ward. In these, we discovered some interesting anatomical variations of the main pulmonary fissures. These findings were not visible on the plain x-ray or during routine examination of a preoperative CT scan. After re-examination of 3D CT scan reconstruction the anatomical variations were detected. Discussion: General thoracic surgeons must familiarize themselves with anatomical variations in lungs. 3D images may aid the general thoracic surgeon in performin…

MaleCT reconstructionCancer Researchmedicine.medical_specialtyLung NeoplasmsCT reconstruction; anatomic variations; lung surgeryComputed tomography030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicineImaging Three-DimensionalImage Interpretation Computer-Assistedmedicine3d ct scanImage Processing Computer-AssistedHumansLung surgeryanatomic variationsPerioperative PeriodPneumonectomyAgedAged 80 and overLungmedicine.diagnostic_testThoracic surgeonbusiness.industryThoracic Surgery Video-AssistedGeneral MedicinePerioperativeMiddle Agedlung surgerymedicine.anatomical_structureOncologyCardiothoracic surgery030220 oncology & carcinogenesisFemaleRadiologybusinessTomography X-Ray ComputedCt reconstructionFuture oncology (London, England)
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Ileal Melanoma, A Rare Cause of Small Bowel Obstruction: Report of a Case, and Short Literature Review.

2020

Background: Malignant melanoma frequently spreads to the gastrointestinal tract, with 60% of patients with advanced metastatic disease showing digestive involvement; however, primary MM of the small intestine is a controversial diagnosis. In fact, whether these lesions arise as true small bowel primary neoplasms or represent metastases from unidentified cutaneous melanomas remains debatable. The most common complications are intestinal obstruction, massive gastrointestinal bleeding, and perforation. Objective & Methods: We report a case of a 64-year-old patient, with an unremarkable medical history, in which a late diagnosis of primary ileal malignant melanoma in the setting of an emer…

MaleCT scanmedicine.medical_specialtyGastrointestinal bleedingmedicine.medical_treatmentPerforation (oil well)Metastasis03 medical and health sciences0302 clinical medicineIleumLaparotomymedicineHumansRadiology Nuclear Medicine and imagingMedical historymetastatic disease.Ileal MelanomaSmall Bowel ObstructionAntineoplastic Agents AlkylatingMelanomaPharmacologyGastrointestinal tractCurrent Radiopharmaceuticalsbusiness.industryGeneral surgeryMelanomaMiddle Agedmedicine.diseaseBowel obstructionDacarbazineIleal NeoplasmsSettore MED/18 - Chirurgia GeneralePEThypercaptation030220 oncology & carcinogenesisPositron-Emission Tomography030211 gastroenterology & hepatologybusinessmetastatic diseaseIntestinal ObstructionCurrent radiopharmaceuticals
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Automatische Berechnung des Milzvolumens aus Spiral-CT-Daten mit Hilfe neuronaler Netze und „Fuzzy Logik”∗

2000

PURPOSE To assess spleen segmentation and volumentry in spiral CT scans with and without pathological changes of splenic tissue. METHODS The image analysis software HYBRIKON is based on region growing, self-organized neural nets, and fuzzy-anatomic rules. The neural nets were trained with spiral CT data from 10 patients, not used in the following evaluation on spiral CT scans from 19 patients. An experienced radiologist verified the results. The true positive and false positive areas were compared in terms to the areas marked by the radiologist. The results were compared with a standard thresholding method. RESULTS The neural nets achieved a higher accuracy than the thresholding method. Cor…

Spiral CT Scansbusiness.industryRegion growingMedicineRadiology Nuclear Medicine and imagingSegmentationFalse positive rateImage analysisSpiral ctbusinessNuclear medicineTrue positive rateThresholdingRöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren
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Les crânes déformés de Saint-Etienne (Beaune, Côte d'Or, Ve-VIe siècles). Données archéologiques et anthropologiques

1995

The sector of the Saint-Étienne necropolis (Beaune), reveals the existence of two clearly separated zones which are characterized by different funeral and cultural practices: tomb architecture, archaeological material and artificially deformed crania. This seems to provide evidence of two distinct groups. A preliminary morpho-metrical study of four skulls and the examination of several CT scans of three of them, allow us to confirm the presence of artificial antero-posterior cranial deformations.

cultural practicespratiques funéraires[SHS.ANTHRO-BIO]Humanities and Social Sciences/Biological anthropologycoupes scanographiquesCrânes déformésCT scanspratiques culturellesdeformed skullshaut Moyen-Age[SHS.ANTHRO-BIO] Humanities and Social Sciences/Biological anthropologyearly Middle Agefuneral practices
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Technical development in cardiac CT: current standards and future improvements—a narrative review

2020

Non-invasive depiction of coronary arteries has been a great challenge for imaging specialists since the introduction of computed tomography (CT). Technological development together with improvements in spatial, temporal, and contrast resolution, progressively allowed implementation of the current clinical role of the CT assessment of coronary arteries. Several technological evolutions including hardware and software solutions of CT scanners have been developed to improve spatial and temporal resolution. The main challenges of cardiac computed tomography (CCT) are currently plaque characterization, functional assessment of stenosis and radiation dose reduction. In this review, we will discu…

medicine.medical_specialtyCardiac computed tomographyPrognosiComputed tomography030204 cardiovascular system & hematology030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicinemedicineMedical physicsmedicine.diagnostic_testbusiness.industryContrast resolutionRadiation doseCoronary artery disease (CAD)Coronary arteriesmedicine.anatomical_structureAtherosclerosiCt scannersNarrative reviewTherapyReview Article on Impact of Cardiac CT in Clinical PracticeCardiology and Cardiovascular MedicinebusinessCardiac computed tomography (CCT)DiagnosiCardiovascular Diagnosis and Therapy
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Spiral-CT und 3 D-Rekonstruktion des Tracheobronchialbaumes zur Auswahl geeigneter Doppellumentuben vor Einzellungenbeatmung

1997

Purpose To assess the potential of 3-D spiral CT in the selection of adequate double-lumen tubes (DLT) for one-lung-ventilation. Materials and methods 3-D spiral CT of eight different DLTs was performed with standardized acquisition parameters: section thickness 4 mm, table speed 6 mm/s, increment 3 mm and standardised thresholds, window settings and magnification zoom. The accuracy was confirmed by measuring 3-D objects on screen and original DLTs by vernier caliper. 3-D spiral CT was performed in 20 patients preoperatively with slice thickness 4-8 mm, pitch 1-1.5, increment 4-8 mm. To select the adequate DLT size the 3-D reconstructions of the patient's tracheobronchial tree and of the DL…

medicine.medical_specialtySpiral CT ScansMaterials sciencebusiness.industrySlice thicknessMagnificationSurgerymedicineSuperimpositionCalipersRadiology Nuclear Medicine and imagingTomographyNuclear medicinebusinessSpiral ctDouble lumen tubeRöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren
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Hypovitaminosis D, oral potentially malignant disorders, and oral squamous cell carcinoma: a systematic review

2021

Oral squamous cell carcinoma (OSCC) and potentially malignant oral disorders (OPMDs) could be associated with low levels of vitamin D. This systematic review aimed to determine the relationship between serum levels of vitamin D with OPMDs and OSCC. This review was conducted according to Cochrane guidelines (PROSPERO CRD42020207382) on literature retrieved from the PubMed, Cochrane, and Web of Science databases. The antecedents extracted were study design, methodology, sample (country, number of patients, age, and sex), oral manifestations (type of lesion, location, prevalence, and follow-up), serum vitamin D levels or use of vitamin D supplements, results, and conclusions. Twelve articles w…

retromolar foramenmandibular nerveSquamous Cell Carcinoma of Head and Neckct scanretromolar canalhelical scanVitamin D Deficiencymandibular canalOtorhinolaryngologyHead and Neck NeoplasmsCarcinoma Squamous CellHumansinferior alveolar nerveMouth NeoplasmsSurgeryretromolar triangleGeneral DentistryUNESCO:CIENCIAS MÉDICASMedicina Oral Patología Oral y Cirugia Bucal
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