Výsledky vyhledávání - "María Helguera"

A Feature-based Affine Registration Method for Capturing Background Lung Tissue Deformation for Ground Glass Nodule Tracking

Autor: Deepak Roy Chittajallu, María Helguera, Nathan D. Cahill, Cristian A. Linte, Yehuda K. Ben-Zikri, David T. Fetzer, Marc Niethammer, Stephen R. Aylward, David A. Shrier

Publikováno v: Comput Methods Biomech Biomed Eng Imaging Vis

Lung nodule tracking assessment relies on cross-sectional measurements of the largest lesion profile depicted in initial and follow-up computed tomography (CT) images. However, apparent changes in nodule size assessed via simple image-based measureme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c169317cc57145bd29e4f824ddca320
https://pubmed.ncbi.nlm.nih.gov/36465979

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A Method to Estimate Brain Volume from Head CT Images and Application to Detect Brain Atrophy in Alzheimer Disease

Autor: María Helguera, Chao Zhang, Andrew M. Michael, Christoph J. Griessenauer, Viraj Adduru, Stefi A. Baum, Ramin Zand, M. Lichtenstein

Publikováno v: AJNR Am J Neuroradiol

BACKGROUND AND PURPOSE: Total brain volume and total intracranial volume are important measures for assessing whole-brain atrophy in Alzheimer disease, dementia, and other neurodegenerative diseases. Unlike MR imaging, which has a number of well-vali

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e910ac683d0d357d7d938eadab42072c
https://doi.org/10.3174/ajnr.a6402

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A machine leaning approach for abdominal aortic aneurysm severity assessment using geometric, biomechanical, and patient-specific historical clinical features

Autor: María Helguera, Golnaz Jalalahmadi, Cristian A. Linte

Publikováno v: Medical Imaging: Biomedical Applications in Molecular, Structural, and Functional Imaging
Proc SPIE Int Soc Opt Eng

Recent studies monitoring severity of abdominal aortic aneurysm (AAA) suggested that reliance on only the maximum transverse diameter ( D max ) may be insufficient to predict AAA rupture risk. Moreover, geometric indices, biomechanical parameters, ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14e833e8e82b7e06b4822fe5e257bca2
https://doi.org/10.1117/12.2549277

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Toward modeling the effects of regional material properties on the wall stress distribution of abdominal aortic aneurysms

Autor: Cristian A. Linte, María Helguera, Golnaz Jalalahmadi, Doran Mix

Publikováno v: Medical Imaging: Biomedical Applications in Molecular, Structural, and Functional Imaging

The overall geometry and different biomechanical parameters of an abdominal aortic aneurysm (AAA), contribute to its severity and risk of rupture, therefore they could be used to track its progression. Previous and ongoing research efforts have resor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df3a01a5a2afc060ffb26edb32293fa8
https://pubmed.ncbi.nlm.nih.gov/31213733

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Toward an Affine Feature-Based Registration Method for Ground Glass Lung Nodule Tracking

Autor: Cristian A. Linte, Yehuda Kfir Ben Zikri, David A. Shrier, Nathan D. Cahill, María Helguera

Publikováno v: VipIMAGE 2019 ISBN: 9783030320393
VipIMAGE 2019 (2019)

Lung nodule progression assessment from medical imaging is a critical biomarker for assessing the course of the disease or the patient's response to therapy. CT images are routinely used to identify the location and size and rack the progression of l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7128c0de69d54638f4014e923744e108
https://doi.org/10.1007/978-3-030-32040-9_26

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Low-cost non-concentric diffraction-based encoder

Autor: Manuel Briones, Sergio Alvarez-Rodríguez, Francisco G. Peña-Lecona, María Helguera, Noé Alcalá-Ochoa

Publikováno v: Optics & Laser Technology. 138:106836

In this paper, we propose a novel low-cost optoelectronic sensor to measure angular displacements from 0 to 360 ° utilizing diffraction principles that avoid the need for complicated software and hardware designs. The arrangement of the sensor inclu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::308c21ec110e0c34b78febf9de96f044
https://doi.org/10.1016/j.optlastec.2020.106836

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(PEAK) WALL STRESS AS AN INDICATOR OF ABDOMINAL AORTIC ANEURYSM SEVERITY

Autor: Golnaz Jalalahmadi, Michael S. Richards, Simona Hodis, Michael C. Stoner, Cristian A. Linte, Doran Mix, María Helguera

Publikováno v: 2018 IEEE Western New York Image and Signal Processing Workshop (WNYISPW).

Abdominal aortic aneurysms, which consist of dilatations of the infra-renal aorta by at least 1.5 times of its normal diameter, are becoming a leading cause of death worldwide. Rupture often occurs unexpectedly, before a repair procedure is conducted

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03cef550bc2412e96f27e0b5d52f4f49
https://doi.org/10.1109/wnyipw.2018.8576453

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Viscoelastic characterization of dispersive media by inversion of a general wave propagation model in optical coherence elastography

Autor: Diane Dalecki, Emma Grygotis, Sarah E. Wayson, Kevin J. Parker, Fernando Zvietcovich, María Helguera, Jannick P. Rolland

Publikováno v: Optical Elastography and Tissue Biomechanics V.

Determining the mechanical properties of tissue such as elasticity and viscosity is fundamental for better understanding and assessment of pathological and physiological processes. Dynamic optical coherence elastography uses shear/surface wave propag

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::30f0f005c00053959602a3e307a0d145
https://doi.org/10.1117/12.2287553

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