Quantitative Detection of Left Ventricular Wall Motion Abnormality by Two-Dimensional Echocardiography

Zinah Rajab Hussein; Rahmita Wirza Rahmat; Lili Nurliyana Abdullah; M. Iqbal Saripan; DM Zamrin

doi:10.5539/cis.v3n2p79

Details

Publication Date

Mon Apr 19 2010

Journal Name

Computer And Information Science

Volume

3

DOI

10.5539/cis.v3n2p79

Choose Citation Style

Statistics

View publication

8

Statistics

(1)

Quantitative Detection of Left Ventricular Wall Motion Abnormality by Two-Dimensional Echocardiography

Left ventricular

Echocardiograph

Short axis

Optical flow

Zinah Rajab Hussein

Rahmita Wirza Rahmat

Lili Nurliyana Abdullah

M. Iqbal Saripan

DM Zamrin

...Show More Authors

Echocardiography is a widely used imaging technique to examine various cardiac functions, especially to detect the left ventricular wall motion abnormality. Unfortunately the quality of echocardiograph images and complexities of underlying motion captured, makes it difficult for an in-experienced physicians/ radiologist to describe the motion abnormalities in a crisp way, leading to possible errors in diagnosis. In this study, we present a method to analyze left ventricular wall motion, by using optical flow to estimate velocities of the left ventricular wall segments and find relation between these segments motion. The proposed method will be able to present real clinical help to verify the left ventricular wall motion diagnosis.

View Publication Preview PDF

Quick Preview PDF

Publication Date

Sat Jun 30 2018

Journal Name

International Journal Of Medical Research & Health Sciences

Assessment of the Healthy Women by Detection and Determination of Cells in Conventional Pap Stained Cervical Smear Images

Huda Hameed

Inam Jasim

Safana Abdulsttar

Zahraa Adnan

...Show More Authors

Introduction: A Pap test can detect pre-cancerous and cancerous cells in the vagina and uterine cervix. Cervical cancer is the easiest gynecologic cancer to be prevented and diagnosed using regular screening tests and follow-up. This study aimed to estimate the cytological changes and the precancerous lesions using Pap smear test and visual inspection of the cervices of Iraqi women, and also to determine the possible relationship of this cancer with patients’ demographic characteristics. Methods: The study included 140 women aged (18-67) years old referred to the National Cancer Research Center (NCRC), Baghdad, Iraq, during the period 2011-2016. Both visual inspections of the uterine cervix and Papanicolaou smear screening were performed

Preview PDF

Publication Date

Tue Jun 01 2021

Journal Name

Food Chemistry

Development of cellulose Nanofiber-based substrates for rapid detection of ferbam in kale by Surface-enhanced Raman spectroscopy

Sun

Yu

Fouad K.

...Show More Authors

View Publication

(27)

(26)

Publication Date

Sun Nov 19 2023

Journal Name

Aip Conference Proceedings

Designing a database for a three dimensional model using geomatics techniques

Amal Mahdi

...Show More Authors

View Publication Preview PDF

Publication Date

Sat Feb 01 2025

Journal Name

Algorithms

Three-Dimensional Object Recognition Using Orthogonal Polynomials: An Embedded Kernel Approach

Aqeel Abdulazeez

Ahlam Hanoon

Alaa M.

Almuntadher

Basheera M.

Sadiq H.

Muntadher

Abir

...Show More Authors

Computer vision seeks to mimic the human visual system and plays an essential role in artificial intelligence. It is based on different signal reprocessing techniques; therefore, developing efficient techniques becomes essential to achieving fast and reliable processing. Various signal preprocessing operations have been used for computer vision, including smoothing techniques, signal analyzing, resizing, sharpening, and enhancement, to reduce reluctant falsifications, segmentation, and image feature improvement. For example, to reduce the noise in a disturbed signal, smoothing kernels can be effectively used. This is achievedby convolving the distributed signal with smoothing kernels. In addition, orthogonal moments (OMs) are a cruc

View Publication

(1)

Publication Date

Mon Dec 05 2022

Journal Name

Journal Of Production And Industrial Engineering

The Use of Quantitative Techniques and Their Role in The Administrative Decision-Making Process in Organizations

Basher.F. Mohammed

...Show More Authors

Due to the developments taking place in the field of communications, informatics systems and knowledge management in the current century, and the obligations and burdens imposed on the business organization to keep pace with these developments, the traditional methods of administrative decision-making are no longer feasible, as recent trends have emerged in management that focus on the need to rely on quantitative methods such as operations research.. The latter is one of the results of World War II, which appeared for the first time in Britain to manage war operations. The first method used in this field is the linear programming method. The use of operations research has developed greatly in the past years, and the methods of analysis in

Publication Date

Sun Dec 25 2022

Journal Name

Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)

Quantitative Determination and Cytotoxic Effect of Oleanolic Acid from Olea europaea Leaves Extract Cultivated in Iraq

Oleanolic acid

acidic hydrolysis method

basic acidic method

HPLC

AMJ13 cell line.

Noor

Dhuha

Thukaa zuhair

Nabaa

...Show More Authors

Since its first description as a cytotoxic agent, Olea europaea leaves extract gained significant popularity against human breast cancer, ethyl acetate extract of Olea europaea leaves obtained by acid hydrolysis method was evaluated in vitro as cytotoxic agent against new human breast cancer (AMJ13) cell line, using the MTT assay. One main pentacyclic triterpenoid; oleanolic acid, was isolated from leaves of Olea europaea by well-known two different methods, but not used for this compound before, the acidic hydrolysis method and basic acidic method. The presence of oleanolic acid was proved in both methods with qualitative and quantitative d

View Publication Preview PDF

(4)

Publication Date

Mon May 11 2020

Journal Name

Baghdad Science Journal

Proposing Robust LAD-Atan Penalty of Regression Model Estimation for High Dimensional Data

Atan penalty

High dimensional data

Least absolute deviation

Robust regression

Variable selection.

Ali Hameed

Omar Abdulmohsin

...Show More Authors

The issue of penalized regression model has received considerable critical attention to variable selection. It plays an essential role in dealing with high dimensional data. Arctangent denoted by the Atan penalty has been used in both estimation and variable selection as an efficient method recently. However, the Atan penalty is very sensitive to outliers in response to variables or heavy-tailed error distribution. While the least absolute deviation is a good method to get robustness in regression estimation. The specific objective of this research is to propose a robust Atan estimator from combining these two ideas at once. Simulation experiments and real data applications show that the p

View Publication Preview PDF

(4)

(1)

Publication Date

Mon May 11 2020

Journal Name

Baghdad Science Journal

Proposing Robust LAD-Atan Penalty of Regression Model Estimation for High Dimensional Data

Atan penalty

High dimensional data

Least absolute deviation

Robust regression

Variable selection

Ali Hameed

Omar Abdulmohsin

...Show More Authors

The issue of penalized regression model has received considerable critical attention to variable selection. It plays an essential role in dealing with high dimensional data. Arctangent denoted by the Atan penalty has been used in both estimation and variable selection as an efficient method recently. However, the Atan penalty is very sensitive to outliers in response to variables or heavy-tailed error distribution. While the least absolute deviation is a good method to get robustness in regression estimation. The specific objective of this research is to propose a robust Atan estimator from combining these two ideas at once. Simulation experiments and real data applications show that the proposed LAD-Atan estimator

View Publication Preview PDF

(1)

Publication Date

Wed Jul 01 2020

Journal Name

Journal Of Physics: Conference Series

“Impress of rotation and an inclined MHD on waveform motion of the non-Newtonian fluid through porous canal”

T

...Show More Authors

Abstract<p>Waveform flow of non-Newtonian fluid through a porous medium of the non-symmetric sloping canal under the effect of rotation and magnetic force, which has applied by the inclined way, have studied analytically and computed numerically. Slip boundary conditions on velocity distribution and stream function are used. We have taken the influence of heat and mass transfer in the consideration in our study. We carried out the mathematical model by using the presumption of low Reynolds number and small wave number. The resulting equations of motion, which are representing by the velocity profile and stream function distribution, solved by using the method of a domain decomposition analysis a</p> ... Show More

View Publication

(10)

(1)

Publication Date

Fri Jul 29 2022

Journal Name

Journal For Vascular Ultrasound

A Comparative Study of the Right and Left Carotid Arteries in Relation to Age for Patients With Diabetes and Hypertension

Introduction: Age

hypertension

and diabetes can cause significant alterations in arterial structure and function

including changes in lumen diameter (LD)

intimal-medial thickness (IMT)

flow velocities

and arterial compliance. These are also considered risk markers of atherosclerosis and cerebrovascular disease. A difference between right and left carotid artery blood flow and IMT has been reported by some researchers

and a difference in the incidence of nonlacunar stroke has been reported between the right and left brain hemispheres. The aim of this study was to determine whether there are differences between the right and left common carotid arteries and internal carotid arteries in patients with hypertension and diabetes for 2 age groups. Methods: We studied 250 patients with both diabetes and hypertension. Patients were divided into 2 age groups with the old age group being 56 to 75 years and the young age group 35 to 55 years. The bilateral common carotid and internal carotid arteries were evaluated with B-mode ultrasound and Doppler examinations. The LD and IMT were measured for both common carotid arteries

and spectral waveform parameters and indices were recorded for both internal carotid arteries. Results: The difference in LD between the left and right common carotid arteries for the old age group was 11.64% and for the young age group was 6.42%

with significant P values of <.05 for both age groups. The difference in IMT between the left and right common carotid arteries was 18.27% in the old age group compared with 15.38% in the young age group

with significant P values of <.05. There was a difference in peak systolic velocity between the left and right internal carotid arteries of 4.85% in the old age group which was not significant

compared with 14.28% in the young age group with a significant P value <.05

whereas the difference in end-diastolic velocity between the left and right internal carotid arteries was not significant for both age groups. Differences between the right and left internal carotid arteries for resistive index

pulsatility index

and pressure gradient were significant only in the young age group. Conclusion: We found significant differences between the right and left common carotid and internal carotid arteries in patients with diabetes and hypertension which were more prominent in the young age group. Values for common carotid IMT and LD were significantly higher in the left common carotid artery versus the right common carotid artery in both age groups. Differences between the 2 carotid sides may be attributed to anatomic variations in the common carotid artery origins which lead to differences in stress between the 2 sides

Ahmed Abduljabar

Samar I.

Anmar Z

...Show More Authors

Introduction:

Age, hypertension, and diabetes can cause significant alterations in arterial structure and function, including changes in lumen diameter (LD), intimal-medial thickness (IMT), flow velocities, and arterial compliance. These are also considered risk markers of atherosclerosis and cerebrovascular disease. A difference between right and left carotid artery blood flow and IMT has been reported by some researchers, and a difference in the incidence of nonlacunar stroke has been reported between the right and left brain hemispheres. The aim of this study was to determine whether there are differences between the right and left common carotid arteries and internal carotid arteries in patient

View Publication

(6)

(5)

1 2 ... 23 24 25 26 ... 2421 2422