نتایج جستجو برای: breast lesions segmentation
تعداد نتایج: 471231 فیلتر نتایج به سال:
PURPOSE To evaluate the diagnostic value of magnetic resonance diffusion-weighted imaging (DWI) using apparent diffusion coefficient (ADC) values to the characterization of breast lesions and differentiation of benign and malignant lesions. MATERIALS AND METHODS Thirty-seven women (mean age, 38 years) with 37 enrolled in the study. DWI and ADC maps in the axial plane were obtained using a 1.5...
conclusions radio-guided localization of non-palpable breast lesions is an acceptable method because of technical facilitation, accurate localization and complete excision with limited complications. so it can be recommended as an alternative method for wire-guided localization. results pathologic results were benign in 90.5% and malignant in 9.5% of patients. post-operative margin of lesion wa...
osteopoikilosis is a rare benign osteosclerotic bone disorder that may be misdiagnosed as skeletal metastases. here we describe a case of coincidental breast cancer and osteopoikilosis mimicking skeletal metastases. a 41-year-old woman underwent right modified radical mastectomy in april 2007. twenty-eight months after initial treatment, the patient complained of bilateral knee and foot pain. p...
UNLABELLED For attenuation correction (AC) in PET/MRI systems, segmentation-based methods are most often used. However, the standardized uptake value (SUV) of lesions in the bone and liver, which have higher attenuation coefficients than other organs, can be underestimated, potentially leading to misinterpretation of clinical cases. Errors in SUV estimation are also dependent on the segmentatio...
Breast cancer mostly arises from the glandular (dense) region of the breast. Consequently, breast density has been found to be a strong indicator for breast cancer risk. Therefore, there is a need to develop a system which can segment or classify dense breast areas. In a dense breast, the sensitivity of mammography for the early detection of breast cancer is reduced. It is difficult to detect a...
Breast cancer is one of the dreadful diseases that seriously affect women. It is proven that this dreadful disease ends the life of one among ten women. Mammogram is an efficient technique to detect breast cancer at earlier stages. This paper aims to survey image enhancement and segmentation on mammograms. Mammogram image segmentation aims at partitioning the image into meaningful Regions of In...
Transcranial direct current stimulation (tDCS), together with speech therapy, is known to relieve the symptoms of aphasia. Knowledge about amount of current to apply and stimulation location is needed to ensure the best result possible. Segmented tissues are used in a finite element method (FEM) simulation and by creating a mesh, information to guide the stimulation is gained. Thus, correct seg...
PURPOSE Methods for quantification of breast density on MRI using semiautomatic approaches are commonly used. In this study, the authors report on a fully automatic chest template-based method. METHODS Nonfat-suppressed breast MR images from 31 healthy women were analyzed. Among them, one case was randomly selected and used as the template, and the remaining 30 cases were used for testing. Un...
Medical imaging, like ultrasound, gives a good visual picture of how an organ works. However, radiologist has hard time and takes long to process these images, which delays the diagnosis. Several automated methods for detecting segmenting breast lesions have been developed. Nevertheless, due ultrasonic artifacts intricacy lesion forms locations, segmentation or tumors from ultrasonography remai...
Clinical Outcome of Magnetic Resonance Imaging-Detected Additional Lesions in Breast Cancer Patients
PURPOSE The aim of this study was to investigate the clinical outcome of additional breast lesions identified with breast magnetic resonance imaging (MRI) in breast cancer patients. METHODS A total of 153 patients who underwent breast MRI between July 2006 and March 2008 were retrospectively reviewed. Thirty-three patients (21.6&) were recommended for second-look ultrasound (US) for further c...
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