Visual Graphic Analysis of Imaging Diagnostic Analysis Research Literature Based on CiteSpace Bibliometrics

Author(s):  
Chengyu Wu
Methodology ◽  
2009 ◽  
Vol 5 (1) ◽  
pp. 26-34
Author(s):  
Rafael Jiménez ◽  
Elena Gervilla ◽  
Albert Sesé ◽  
Juan José Montaño ◽  
Berta Cajal ◽  
...  

The use of classic dimension reduction techniques can be considered customary practice within the context of data mining (DM). Nevertheless, although artificial neural networks (ANNs) are one of the most important DM techniques, specific ANN architectures for dimensionality reduction, such as the principal components analysis ANN (PCA-ANN) and the linear auto-associative ANN (LA-ANN), are used on far fewer occasions. In this study, categorical principal component analysis (CATPCA) and the two ANN procedures are studied and compared searching for uniqueness in an applied context relative to personality variables and drug consumption. A sample of 7,030 adolescents completed a personality test made up of 20 dichotomous items with a hypothesized four-factor latent model. Results point out that both ANN factor solutions converge to those obtained using CATPCA. Nevertheless, possible drawbacks of the ANN techniques lie in their relatively complex application, as well as in the need to use visual graphic analysis as a support for interpreting the factorized solutions.


Author(s):  
Munawir Yusuf ◽  
Zamzammiyah Nur Aini ◽  
Sugini Sugini

Maladaptive behaviours of students with Attention Deficit Hyperactivity Disorder (ADHD) is negative behaviours, which disturb a learning process in the classroom. This study was conducted to identify the use of the behavior contract in reducing maladaptive behaviors in students with ADHD in Al Firdaus Elementary School Surakarta, Indonesia. Subject of this study was a third grade ADHD student. The Single Subject Research (SSR) with multiple baseline cross variables design was applied as experimental method. The target behaviors were directly observed, recorded in the instrument and analyzed by visual graphic analysis method. At the baseline-1 phase, the target behavior of verbally disrupting friends occured on average 20 times, while nonverbal disruption occured 24 times. The target behavior in the intervention -1 phase tended decrease, with an average of 5 times (verbal) and 4 times (nonverbal). At the baseline-2 phase, the target behavior of interrupting the teacher’s explanation occured on average 18 times. This behavior decreased in the intervention-2 phase with an average of 3 times. At the baseline-3 phase, the target behavior of unable to resist eating and drinking occured on average 10 times. At the intervention-3 phase, the behavior occured on average once. It can be concluded that the behavior contract may reduce maladaptive behaviors of student with ADHD.


2010 ◽  
Vol 20 (2) ◽  
pp. 37-46
Author(s):  
Nicole M. Etter

Traditionally, speech-language pathologists (SLP) have been trained to develop interventions based on a select number of perceptual characteristics of speech without or through minimal use of objective instrumental and physiologic assessment measures of the underlying articulatory subsystems. While indirect physiological assumptions can be made from perceptual assessment measures, the validity and reliability of those assumptions are tenuous at best. Considering that neurological damage will result in various degrees of aberrant speech physiology, the need for physiologic assessments appears highly warranted. In this context, do existing physiological measures found in the research literature have sufficient diagnostic resolution to provide distinct and differential data within and between etiological classifications of speech disorders and versus healthy controls? The goals of this paper are (a) to describe various physiological and movement-related techniques available to objectively study various dysarthrias and speech production disorders and (b) to develop an appreciation for the need for increased systematic research to better define physiologic features of dysarthria and speech production disorders and their relation to know perceptual characteristics.


VASA ◽  
2010 ◽  
Vol 39 (1) ◽  
pp. 85-93 ◽  
Author(s):  
Schubert

The subclavian steal effect indicates atherosclerotic disease of the supraaortic vessels but rarely causes cerebrovascular events in itself. Noninvasive imaging providing detailed anatomic as well as hemodynamic information would therefore be desirable. From a group of 25 consecutive patients referred for MR angiography, four with absent or highly attenuated signal in one of the vertebral arteries on 3D multislab time-of-flight MR angiography were selected to undergo 3D time-resolved contrast-enhanced MR angiography. The time-resolved 3D contrast series (source images and MIPs) were evaluated visually and by graphic analysis of time-intensity curves derived from the respective V1 and V3 segments of both vertebral arteries on the source images. In two cases with high-grade proximal left subclavian stenosis, time-resolved 3D ce-MRA was able to visualise retrograde contrast filling of the left VA. There was a marked delay in time-to-peak between the left and right V1 segments in one case and a shallower slope of enhancement in another. In the other two cases, there was complete or collateralised segmental occlusion of the VAs.


1983 ◽  
Vol 28 (11) ◽  
pp. 835-836
Author(s):  
Harris Cooper
Keyword(s):  

1994 ◽  
Author(s):  
Howard A. Liddle ◽  
◽  
Susan Schmidt ◽  
Guy Diamond ◽  
Mitchell Dickey

Sign in / Sign up

Export Citation Format

Share Document