Microcalcification
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Ultrasonographic differentiation and Ultrasound-based management of partially cystic thyroid nodules
ABSTRACT Objective: To determine sonographic features of malignancy in partially cystic thyroid nodules and assess the diagnostic efficacy of these features for differentiating between benign and malignant lesions in the nodules with indeterminate cytology. Subjects and methods: From January 2016 to December 2017, a total of 91 patients with 94 partially c
Arch. Endocrinol. Metab.. Publicado em: 2021-06
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2. Are clinicopathological features of the isthmic thyroid nodule different from nodules in thyroid lobes? A single center experience
ABSTRACT Objectives: Thyroid nodules located in isthmus were found less prevalent, although papillary thyroid cancer in this location was reported to be more aggressive behaviour in some studies. Our aim was to evaluate hormonal,ultrasonographic, and cytopathologic features of nodules located in isthmus (isthmic nodules). Subjects and methods: Patients who
Arch. Endocrinol. Metab.. Publicado em: 2021-06
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3. Likelihood of malignancy in thyroid nodules according to a proposed Thyroid Imaging Reporting and Data System (TI-RADS) classification merging suspicious and benign ultrasound features
ABSTRACT Objective The aim of this study was to describe the ultrasound features of benign and malignant thyroid nodules and evaluate the likelihood of malignancy associated with each feature according to the Bethesda System for Reporting Thyroid Cytopathology and histopathology. With this analysis, we propose a new TI-RADS classification system. Material
Arch. Endocrinol. Metab.. Publicado em: 27/03/2017
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4. Painless thyroiditis associated to thyroid carcinoma: role of initial ultrasonography evaluation
Even though it is a rare event, most associations of thyroid carcinoma with subacute thyroiditis described in the literature are related to its granulomatous form (Quervain’s thyroiditis). We present a patient with subacute lymphocytic thyroiditis (painless thyroiditis) and papillary thyroid cancer that was first suspected in an initial ultrasound evaluati
Arch. Endocrinol. Metab.. Publicado em: 25/09/2015
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5. Segmenting mammographic microcalcifications using a semi-automatic procedure based on Otsu's method and morphological filters
INTRODUCTION: Breast cancer has the second highest world's incidence rate, according to the Brazilian National Cancer Institute (INCa). Clinical examination and mammography are the best methods for early diagnosis. Computer-aided detection (CADe) and computer-aided diagnosis (CADx) systems are developed to improve mammographic diagnosis. Basically, CADx syst
Rev. Bras. Eng. Bioméd.. Publicado em: 2013-12
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6. Desenvolvimento de novas técnicas para redução de falso-positivo e definição automática de parâmetros em esquemas de diagnóstico auxiliado por computador em mamografia / Development of news technique for reduction of false-positive and automatic definition of parameters of mammograms for CAD schemes
This present work consists on the investigation of mammographic image characteristics for automatic determination of image processing parameters for a mammography computer aided diagnosis scheme (CAD) in order to get optimal performance. Additionally, using the results obtained on this first investigation, it was also developed a new technique for the reduct
Publicado em: 2007
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7. Esquema de diagnóstico auxiliado por computador para detecção de agrupamentos de microcalcificações por processamento de imagens mamográficas / Layout computer aided diagnosis for detection of microcalcifications clusters for processing mammography images
Breast cancer is one of the main causes of women death all over the world. However, early detection of the disease increases greatly the possibility of cure. Therefore, several types of computer systems based on image processing are being developed by many research groups in order to aid the radiologist in the accuracy of the diagnosis. The work presented he
Publicado em: 1997
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8. Examination of breast needle core biopsy specimens performed for screen‐detected microcalcification
BMJ Group.
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9. Is needle-directed breast biopsy overused?
We undertook this study of needle-localized breast biopsy--a frequently done surgical procedure--to examine current practice patterns and to determine if the technique is overused in any group of patients. From a retrospective review of medical records of all patients who had needle-localized breast biopsy at a teaching hospital between June 1, 1988, and Oct
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10. The diagnosis and management of pre-invasive breast disease: Radiological diagnosis
Pre-invasive disease is most frequently diagnosed in asymptomatic women following detection of microcalcification at mammography. The vast majority is ductal carcinoma in situ. This article summarizes the radiological features of pre-invasive disease and indicates which features are helpful in differentiating between benign and malignant conditions. The valu
BioMed Central.
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11. Non‐operative breast pathology: columnar cell lesions
The term “columnar cell lesions” encompasses a spectrum of processes, characterised by variably dilated acini, lined by one to several layers of tightly packed, columnar‐shaped epithelial cells. These lesions have received renewed attention in the literature due to their high prevalence in biopsy specimens taken for assessment of mammographically detec
BMJ Group.