4.Diagnostic Performance Using a Combination of MRI Findings for Evaluating Cognitive Decline
Jin Young BYUN ; Min Kyoung LEE ; So Lyung JUNG
Journal of the Korean Society of Radiology 2024;85(1):184-196
Purpose:
We investigated potentially promising imaging findings and their combinations in the evaluation of cognitive decline.
Materials and Methods:
This retrospective study included 138 patients with subjective cognitive impairments, who underwent brain MRI. We classified the same group of patients into Alzheimer’s disease (AD) and non-AD groups, based on the neuropsychiatric evaluation. We analyzed imaging findings, including white matter hyperintensity (WMH) and cerebral microbleeds (CMBs), using the Kruskal–Wallis test for group comparison, and receiver operating characteristic (ROC) curve analysis for assessing the diagnostic performance of imaging findings.
Results:
CMBs in the lobar or deep locations demonstrated higher prevalence in the patients with AD compared to those in the non-AD group. The presence of lobar CMBs combined with periventricular WMH (area under the ROC curve [AUC] = 0.702 [95% confidence interval: 0.599–0.806], p < 0.001) showed the highest performance in differentiation of AD from non-AD group.
Conclusion
Combinations of imaging findings can serve as useful additive diagnostic tools in the assessment of cognitive decline.
5.Diagnostic Performance Using a Combination of MRI Findings for Evaluating Cognitive Decline
Jin Young BYUN ; Min Kyoung LEE ; So Lyung JUNG
Journal of the Korean Society of Radiology 2024;85(1):184-196
Purpose:
We investigated potentially promising imaging findings and their combinations in the evaluation of cognitive decline.
Materials and Methods:
This retrospective study included 138 patients with subjective cognitive impairments, who underwent brain MRI. We classified the same group of patients into Alzheimer’s disease (AD) and non-AD groups, based on the neuropsychiatric evaluation. We analyzed imaging findings, including white matter hyperintensity (WMH) and cerebral microbleeds (CMBs), using the Kruskal–Wallis test for group comparison, and receiver operating characteristic (ROC) curve analysis for assessing the diagnostic performance of imaging findings.
Results:
CMBs in the lobar or deep locations demonstrated higher prevalence in the patients with AD compared to those in the non-AD group. The presence of lobar CMBs combined with periventricular WMH (area under the ROC curve [AUC] = 0.702 [95% confidence interval: 0.599–0.806], p < 0.001) showed the highest performance in differentiation of AD from non-AD group.
Conclusion
Combinations of imaging findings can serve as useful additive diagnostic tools in the assessment of cognitive decline.
6.Diagnostic Performance Using a Combination of MRI Findings for Evaluating Cognitive Decline
Jin Young BYUN ; Min Kyoung LEE ; So Lyung JUNG
Journal of the Korean Society of Radiology 2024;85(1):184-196
Purpose:
We investigated potentially promising imaging findings and their combinations in the evaluation of cognitive decline.
Materials and Methods:
This retrospective study included 138 patients with subjective cognitive impairments, who underwent brain MRI. We classified the same group of patients into Alzheimer’s disease (AD) and non-AD groups, based on the neuropsychiatric evaluation. We analyzed imaging findings, including white matter hyperintensity (WMH) and cerebral microbleeds (CMBs), using the Kruskal–Wallis test for group comparison, and receiver operating characteristic (ROC) curve analysis for assessing the diagnostic performance of imaging findings.
Results:
CMBs in the lobar or deep locations demonstrated higher prevalence in the patients with AD compared to those in the non-AD group. The presence of lobar CMBs combined with periventricular WMH (area under the ROC curve [AUC] = 0.702 [95% confidence interval: 0.599–0.806], p < 0.001) showed the highest performance in differentiation of AD from non-AD group.
Conclusion
Combinations of imaging findings can serve as useful additive diagnostic tools in the assessment of cognitive decline.
7.The First Korean Case Report of Siblings with 12q24.22q24.33 Duplication
Se Hwan MOON ; Jung-Sook HA ; Jun chul BYUN ; Hee Joung CHOI ; So Yun PARK
Keimyung Medical Journal 2024;43(1):54-58
Live-born cases of partial trisomy 12q are rare, and only a few fetuses with this unbalanced translocation have survived to term. To our knowledge, only about 40 patients have been reported as having 12q duplication, and among them are no Korean reports. Here, we report the first Korean case of siblings with a 12q24.22q24.33 duplication. An 11-year-old boy visited our clinic for short stature. He was born small for his gestational age and had distinctive facial features, a history of surgery for anorectal malformation, psychomotor delay, intellectual disabilities, and attention-deficit/hyperactivity disorder (ADHD). He had an older sister with similar clinical features. The chromosomal microarray of the patient and his sister showed identical results: a 16.2 Mb duplication of 12q24.22q24.33. They had an identical cutoff point, but their symptoms were not. Symptoms common to both included growth retardation, psychomotor delay, intellectual disability, ADHD, and small for their gestational age.
8.Characteristics of children hospitalized through the pediatric emergency department and effects of pediatric emergency ward hospitalization
Eun Bit LEE ; So Hyun PAEK ; Jae Hyun KWON ; Soo-Hyun PARK ; Min-Jung KIM ; Young-Hoon BYUN
Pediatric Emergency Medicine Journal 2023;10(4):124-131
Purpose:
To evaluate the efficiency of the pediatric emergency ward (PEW) through the outcomes of children hospitalized to the ward by the department of pediatric emergency medicine (PEM).
Methods:
A chart review was completed for children (< 15 years) who were hospitalized to the PEW via the pediatric emergency center from March through May 2021. We compared the general characteristics and details regarding the outcomes depending on the departments they were hospitalized to, namely PEM, pediatrics (PED), and others.
Results:
We analyzed a total of 606 hospitalized children: PEM, 91; PED, 456; and others, 59. In the order listed above, their median ages were 2 years (interquartile range, 1-6), 1 year (0-4), and 9 years (7-14) (P < 0.001). The numbers of children with Korean Triage and Acuity Scale of 1-3 were 71 (78.0%), 400 (87.7%), and 33 (55.9%) (P < 0.001). Median length of stay (LOS) in the emergency department (ED) and hospital tended to be shorter in PEM (ED LOS: PEM, 4.3 hours vs. PED and others, 4.0-6.3 hours; hospital LOS: PEM, 19.0 hours vs. PED and others, 58.5-63.8 hours; all Ps < 0.001). The differences in the LOS were prominent between others and PEM (ED LOS, 1.538 [95% confidence interval, 1.353-1.749]; hospital LOS, 3.375 [2.741-4.157]). Transfers to other departments occurred only in PEM (4.4%) and PED (3.9%) whereas intensive care was performed only in others (27.1%). Return visits showed no difference among the 3 departments. Top 5 chief complaints and primary diagnoses of the children hospitalized to PEM were vomiting, fever, abdominal pain, head injury, and poisoning, and gastroenteritis, concussion, syncope, poisoning, and upper respiratory infection, respectively.
Conclusion
Hospitalization to PEWs for short-term treatment or observation may relieve overcrowding in EDs or in hospitals, with comparable frequency of return visits.
9.Validation of the Korean Version of the Anosognosia Questionnaire for Dementia
Gi Hwan BYEON ; Woo Jin KIM ; Min Soo BYUN ; Jun Ho LEE ; So Yeon JEON ; Kang KO ; Kiyoung SUNG ; Dongkyun HAN ; Haejung JOUNG ; Younghwa LEE ; Gijung JUNG ; Han Na LEE ; Dahyun YI ; Dong Young LEE ;
Psychiatry Investigation 2021;18(4):324-331
Objective:
Anosognosia is a common phenomenon in individuals with dementia. Anosognosia Questionnaire for dementia (AQ-D) is a well-known scale for evaluating anosognosia. This study aimed to establish a Korean version of the AQ-D (AQ-D-K) and to evaluate the reliability and validity of the AQ-D-K in patients with Alzheimer’s disease (AD) dementia.
Methods:
We translated the original English version of AQ-D into Korean (AQ-D-K). Eighty-four subjects with very mild or mild AD dementia and their caregivers participated. Reliability of AQ-D-K was assessed by internal consistency and one-month test-retest reliability. Construct validity and concurrent validity were also evaluated.
Results:
Internal consistencies of the AQ-D-K patient form and caregiver form were high (Cronbach alpha 0.95 and 0.93, respectively). The test-retest reliability of AQ-D-K measured by intra-class correlation coefficient was 0.84. Three factors were identified: 1) anosognosia of instrumental activity of daily living; 2) anosognosia basic activity of daily living; and 3) anosognosia of depression and disinhibition. AQ-D-K score was significantly correlated with the clinician-rated anosognosia rating scale (ARS), center for epidemiological studies-depression scale (CES-D) and state-trait anxiety inventory (STAI).
Conclusion
The findings suggest that the AQ-D-K is a reliable and valid scale for evaluating anosognosia for AD dementia patients using Korean language.
10.Validation of the Korean Version of the Anosognosia Questionnaire for Dementia
Gi Hwan BYEON ; Woo Jin KIM ; Min Soo BYUN ; Jun Ho LEE ; So Yeon JEON ; Kang KO ; Kiyoung SUNG ; Dongkyun HAN ; Haejung JOUNG ; Younghwa LEE ; Gijung JUNG ; Han Na LEE ; Dahyun YI ; Dong Young LEE ;
Psychiatry Investigation 2021;18(4):324-331
Objective:
Anosognosia is a common phenomenon in individuals with dementia. Anosognosia Questionnaire for dementia (AQ-D) is a well-known scale for evaluating anosognosia. This study aimed to establish a Korean version of the AQ-D (AQ-D-K) and to evaluate the reliability and validity of the AQ-D-K in patients with Alzheimer’s disease (AD) dementia.
Methods:
We translated the original English version of AQ-D into Korean (AQ-D-K). Eighty-four subjects with very mild or mild AD dementia and their caregivers participated. Reliability of AQ-D-K was assessed by internal consistency and one-month test-retest reliability. Construct validity and concurrent validity were also evaluated.
Results:
Internal consistencies of the AQ-D-K patient form and caregiver form were high (Cronbach alpha 0.95 and 0.93, respectively). The test-retest reliability of AQ-D-K measured by intra-class correlation coefficient was 0.84. Three factors were identified: 1) anosognosia of instrumental activity of daily living; 2) anosognosia basic activity of daily living; and 3) anosognosia of depression and disinhibition. AQ-D-K score was significantly correlated with the clinician-rated anosognosia rating scale (ARS), center for epidemiological studies-depression scale (CES-D) and state-trait anxiety inventory (STAI).
Conclusion
The findings suggest that the AQ-D-K is a reliable and valid scale for evaluating anosognosia for AD dementia patients using Korean language.

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