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Alexander Ciritsis
University of Zurich
RadiologyMagnetic resonance imagingVisualizationMedicineIntravoxel incoherent motion
28Publications
5H-index
96Citations
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Publications 29
Newest
#1Magda Marcon (UZH: University of Zurich)H-Index: 8
#2Alexander Ciritsis (UZH: University of Zurich)H-Index: 5
Last. Andreas Boss (UZH: University of Zurich)H-Index: 33
view all 9 authors...
Our aims were to determine if features derived from texture analysis (TA) can distinguish normal, benign, and malignant tissue on automated breast ultrasound (ABUS); to evaluate whether machine learning (ML) applied to TA can categorise ABUS findings; and to compare ML to the analysis of single texture features for lesion classification. This ethically approved retrospective pilot study included 54 women with benign (n = 38) and malignant (n = 32) solid breast lesions who underwent ABUS. After m...
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#1Valerie Doan Phi van (UZH: University of Zurich)H-Index: 1
#2Caecilia S. Reiner (UZH: University of Zurich)H-Index: 19
Last. Cristina RossiH-Index: 14
view all 7 authors...
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#1Ryszard Stefan Gomolka (UZH: University of Zurich)
#1Ryszard Gomolka (UZH: University of Zurich)H-Index: 5
Last. Cristina Rossi (UZH: University of Zurich)H-Index: 14
view all 4 authors...
Introduction Although relevant for assessment of sodium in multiple endocrine pathways, 23Na-T1 quantification is challenging due to technical limitations (SAR, B1 inhomogeneity) or influence of tissue’s local molecular dynamics. Hereby, we propose T1 quantification of 23Na-MRI signal acquired over the abdomen using a centric-reordered saturation-recovery (SR) true fast imaging with steady state precession (TrueFISP) sequence.
Source
#1Alexander Ciritsis (UZH: University of Zurich)H-Index: 5
#2Cristina Rossi (UZH: University of Zurich)H-Index: 14
Last. Andreas Boss (UZH: University of Zurich)H-Index: 33
view all 6 authors...
Objectives To evaluate a deep convolutional neural network (dCNN) for detection, highlighting, and classification of ultrasound (US) breast lesions mimicking human decision-making according to the Breast Imaging Reporting and Data System (BI-RADS).
2 CitationsSource
#1Michael J. Ho (UZH: University of Zurich)H-Index: 1
#2Alexander Ciritsis (UZH: University of Zurich)H-Index: 5
Last. Felix P. Kuhn (UZH: University of Zurich)H-Index: 13
view all 7 authors...
PURPOSE Diffusion tensor imaging (DTI) adds functional information to morphological magnetic resonance neurography (MRN) in the assessment of the brachial nerve plexus. To determine the most appropriate pulse sequence in scan times suited for diagnostic imaging in clinical routine, we compared image quality between simultaneous multi-slice readout-segmented (rs-DTI) and conventional single-shot (ss-DTI) echo-planar imaging techniques. METHODS Institutional Review Board (IRB) approved study inclu...
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#1Daniel Truhn (RWTH Aachen University)H-Index: 9
#2Christiane K. Kuhl (RWTH Aachen University)H-Index: 50
Last. Nils A. Kraemer (RWTH Aachen University)H-Index: 10
view all 5 authors...
Objectives Most existing models that are in use to model hepatic function through assessment of hepatic gadoxetic acid enhancement kinetics do not consider quantitative measures of gadoxetic excretion. We developed a model that allows a simultaneous quantitation of uptake and excretion of liver specific contrast agents. The aim was to improve the assessment of hepatic synthetic function, and provide quantitative measures of hepatic excretion function.
1 CitationsSource
#1Alexander Ciritsis (UZH: University of Zurich)H-Index: 5
#2Cristina Rossi (UZH: University of Zurich)H-Index: 14
Last. Andreas Boss (UZH: University of Zurich)H-Index: 33
view all 8 authors...
Objective:High breast density is a risk factor for breast cancer. The aim of this study was to develop a deep convolutional neural network (dCNN) for the automatic classification of breast density based on the mammographic appearance of the tissue according to the American College of Radiology Breast Imaging Reporting and Data System (ACR BI-RADS) Atlas.Methods:In this study, 20,578 mammography single views from 5221 different patients (58.3 ± 11.5 years) were downloaded from the picture archivi...
2 CitationsSource
#1Alexander CiritsisH-Index: 5
#2Cristina RossiH-Index: 14
Last. Andreas BossH-Index: 33
view all 5 authors...
AbstractTo evaluate the feasibility of accelerated simultaneous multislice diffusion weighted sequences (SMS-DWI) for lymph node detection in the abdominopelvic region. Sequences were evaluated regarding the number and depiction of lymph nodes detected with SMS-DWI compared with conventional diffusi
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#1Alexander Ciritsis (UZH: University of Zurich)H-Index: 5
#2Andreas Boss (UZH: University of Zurich)H-Index: 33
Last. Cristina Rossi (UZH: University of Zurich)H-Index: 14
view all 3 authors...
Source
#1A. Lambertz (RWTH Aachen University)H-Index: 8
#2L. C. L. van den Hil (RWTH Aachen University)H-Index: 3
Last. Christian D. Klink (RWTH Aachen University)H-Index: 16
view all 10 authors...
ABSTRACTBackground: The frequency of laparoscopic approaches increased in hernia surgery over the past years. After mesh placement in IPOM position, the real extent of the meshes configurational changes after termination of pneumoperitoneum is still largely unknown. To prevent a later mesh folding it might be useful to place the mesh while it is kept under tension. Conventionally used meshes may lose their Effective Porosity under these conditions due to poor elastic properties. The aim of this ...
3 CitationsSource
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