Image registration between MRI and spot mammograms for X-ray guided stereotactic breast biopsy: preliminary results

2021 ◽  
Author(s):  
Sarah Said ◽  
Paola Clauser ◽  
Nicole V. Ruiter ◽  
Pascal A. T. Baltzer ◽  
Torsten Hopp
Keyword(s):  
Image Registration ◽  
Breast Biopsy ◽  
X Ray ◽  
Preliminary Results ◽  
Stereotactic Breast Biopsy

First experience with MRI-guided vacuum aspirated breast biopsy

2020 ◽  
pp. 25-31
Author(s):  
M. L. Mazo ◽  
O. E. Jacobs ◽  
O. S. Puchkova ◽  
M. V. Feldsherov ◽  
E. V. Kondratyev
Keyword(s):  
Breast Cancer ◽  
Breast Augmentation ◽  
Breast Biopsy ◽  
Breast Mri ◽  
Breast Tumors ◽  
High Tech ◽  
X Ray ◽  
Vacuum Aspiration ◽  
Mri Guided ◽  
Aesthetic Breast

The rate of detection of breast cancer by MRI, while other methods of radiological diagnosis are not sufficiently informative, ranges from 5.2 to 26.3 per cent. Suspicious breast tumors of category BI-RADS 4, 5 show morphological image-guided biopsy verification, in particular MRI with contrast. Purpose. To show the possibilities and features of carrying out MRI-guided vacuum breast biopsy, including after aesthetic breast augmentation. Material and methods. A comprehensive X-ray, ultrasound and MRI examination of 54 women aged between 28 and 70 years with different breast tumors was conducted. Of these, five were detected only by breast MRI with contrast, and were morphologically verified by MRI-guided vacuum aspiration biopsy. Results. 14 of the 54 patients with breast mass were diagnosed with breast cancer and 26 were diagnosed with benign diseases. The effectiveness of comprehensive examination and low-invasive high-tech MRI-guided procedures in early refined screening for breast cancer, including after aesthetic breast augmentation, has been demonstrated. MRI-guided vacuum-assisted breast biopsy is a fast, safe and accurate diagnostic method of morphological verification of suspicious breast tumors that do not have X-ray and ultrasound.

Medium-Energy Concentrator Spectrometer on board the x-ray astronomy satellite SAX: preliminary results of ground x-ray calibrations

1995 ◽  
Author(s):  
Giuliano Boella ◽  
Lucio Chiappetti ◽  
Giancarlo Conti ◽  
Silvano Molendi ◽  
Giancarlo Cusumano ◽  
...  
Keyword(s):  
Medium Energy ◽  
X Ray ◽  
Preliminary Results

scholarly journals Diffuse X-ray scattering by glassy crystalline cyclohexanol : preliminary results

1980 ◽  
Vol 41 (15) ◽  
pp. 365-368 ◽  
Author(s):  
D. Ceccaldi ◽  
F. Denoyer ◽  
M. Lambert ◽  
H. Szwarc
Keyword(s):  
X Ray ◽  
Preliminary Results ◽  
X Ray Scattering ◽  
Ray Scattering

scholarly journals GOLD PROVENANCE AND CHARACTERIZATION USING MICRO X-RAY FLUORESCENCE (µXRF): PRELIMINARY RESULTS/ PROVENIÊNCIA E CARACTERIZAÇÃO DE OURO COM MICRO FLUORESCÊNCIA DE RAIOS X (μXRF): RESULTADOS PRELIMINARES

2018 ◽  
Vol 3 (3) ◽  
pp. 155-165
Author(s):  
William Murussi Canto ◽  
Hamilton Santos Gama Filho ◽  
Marcelino José dos Anjos ◽  
Armando Dias Tavares Jr. ◽  
Mauro César Geraldes
Keyword(s):  
Sample Preparation ◽  
Pure Gold ◽  
Noninvasive Technique ◽  
X Ray ◽  
Preliminary Results ◽  
Icp Ms ◽  
Para Determinar ◽  
Made In ◽  
Gold Digging

This work presents some preliminary results that allows to characterize gold samples using Micro X-Ray Fluorescence/µXRF. The first aim of this work is to apply a noninvasive technique, preserving the sample integrity, in order to identify the composition of gold samples and to recognize their possible geographical provenance. Samples have been obtained in geographically distinct gold-digging sites, in three Brazilian and one Colombian areas. These samples were processed only by fusion into a furnace at 1,200 ºC. The proportion of Au, Ag and Cu were measured in gold samples. The results of this work, allowed to characterize and to identify quite well the pure gold provenance, using µXRF instrumentation and related techniques. Further work is in progress to determine the behavior of mixed gold samples from different provenances. Besides that, measurements with different sample preparation will be made, in order to compare the results obtained in this work with those obtained by LA-ICP-MS techniques. ResumoEste trabalho apresenta resultados preliminares que permitem caracterizar amostras de ouro utilizando a Micro Fluorescência de Raios-X/ µXRF. O primeiro objetivo deste trabalho é aplicar uma técnica não invasiva, preservando a integridade da amostra, para identificar a composição de amostras de ouro e reconhecer a sua possível proveniência geográfica. As amostras foram obtidas em locais de exploração de ouro geograficamente distintos, em três áreas brasileiras e uma colombiana. Estas amostras foram sugeitas a fusão a 1.200 ºC, num forno. A proporção de Au, Ag e Cu foi medida em amostras de ouro. Os resultados deste trabalho permitiram caracterizar e claramente identificar a proveniência de ouro puro, utilizando resultados de µXRF. Estão em andamento outros trabalhos para determinar o comportamento da mistura de amostras de ouro de diferentes procedências. Além disso, serão efetuadas medições com diferentes preparações de amostras, a fim de comparar os resultados obtidos neste trabalho com os que estão sendo aquiridos com técnicas de LA-ICP-MS.

Real-time registration of 3D echo to x-ray fluoroscopy based on cascading classifiers and image registration

2021 ◽  
Vol 66 (5) ◽  
pp. 055019
Author(s):  
YingLiang Ma ◽  
R James Housden ◽  
Ansab Fazili ◽  
Aruna V Arujuna ◽  
Kawal S Rhode
Keyword(s):  
Image Registration ◽  
Real Time ◽  
X Ray ◽  
3D Echo
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