1.Comparison of micro-flow imaging and contrast-enhanced ultrasonography in assessing segmental congestion after right living donor liver transplantation
Taewon HAN ; Woo Kyoung JEONG ; Jaeseung SHIN ; Dong Ik CHA ; Kyowon GU ; Jinsoo RHU ; Jong Man KIM ; Gyu-Seong CHOI
Ultrasonography 2024;43(6):469-477
Purpose:
This study aimed to determine whether micro-flow imaging (MFI) offers diagnostic performance comparable to that of contrast-enhanced ultrasonography (CEUS) in detecting segmental congestion among patients undergoing living donor liver transplantation (LDLT).
Methods:
Data from 63 patients who underwent LDLT between May and December 2022 were retrospectively analyzed. MFI and CEUS data collected on the first postoperative day were quantified. Segmental congestion was assessed based on imaging findings and laboratory data, including liver enzymes and total bilirubin levels. The reference standard was a postoperative contrast-enhanced computed tomography scan performed within 2 weeks of surgery. Additionally, a subgroup analysis examined patients who underwent reconstruction of the middle hepatic vein territory.
Results:
The sensitivity and specificity of MFI were 73.9% and 67.5%, respectively. In comparison, CEUS demonstrated a sensitivity of 78.3% and a specificity of 75.0%. These findings suggest comparable diagnostic performance, with no significant differences in sensitivity (P=0.655) or specificity (P=0.257) between the two modalities. Additionally, early postoperative laboratory values did not show significant differences between patients with and without congestion. The subgroup analysis also indicated similar diagnostic performance between MFI and CEUS.
Conclusion
MFI without contrast enhancement yielded results comparable to those of CEUS in detecting segmental congestion after LDLT. Therefore, MFI may be considered a viable alternative to CEUS.
2.Time Series Changes in Indices of Diabetes Management from the 2008-2022 Korea Community Health Survey
So Yeon RYU ; Seong Woo CHOI ; So Jung JEONG ; Hyae Min GU
Journal of Agricultural Medicine & Community Health 2024;49(3):179-193
Objectives:
This study aimed to determine the time-series changes in provincial diabetes management indices using by results of the 2008-2022 Korea Community Health Survey.
Methods:
We collected diabetes diagnosis experience rate, treatment rate for people diagnosed with diabetes, annual screening rate for diabetic eye disease complications, and annual screening rate for diabetic kidney disease complications with age-standardized rates from the Regional Health Statistics. The unit of analysis was the nation and 17 provinces and the time-series trend analysis was performed by joinpoint regression using the Joinpoint Regression Program, and the annual percent change (APC) and average APC (AAPC) were estimated, and statistical significance was tested using 95% confidence interval (CI).
Results:
From 2008-2022, the national AAPC (95% CI) for diabetes diagnosis experience rate steadily increased to 2.77 (2.25-3.27), increasing in all regions, excluding Sejong. The national AAPC for treatment rate for people diagnosed with diabetes was 0.75 (0.47-1.04), with a slight but steady trend toward improvement, excluding Daejeon, Sejong, and Jeonbuk, which showed significant improvement. The national AAPCs for annual screening rates for diabetic eye disease and kidney disease complications were 1.82 (0.99-2.66) and 1.95 (0.60-3. 41), respectively, and the area with the largest change was Sejong.
Conclusions
In Korea, the diabetes management indices tended to increase and improve, but the trends among provinces varied. Therefore, efforts are needed to address regional disparities in diabetes management.
3.Comparison of micro-flow imaging and contrast-enhanced ultrasonography in assessing segmental congestion after right living donor liver transplantation
Taewon HAN ; Woo Kyoung JEONG ; Jaeseung SHIN ; Dong Ik CHA ; Kyowon GU ; Jinsoo RHU ; Jong Man KIM ; Gyu-Seong CHOI
Ultrasonography 2024;43(6):469-477
Purpose:
This study aimed to determine whether micro-flow imaging (MFI) offers diagnostic performance comparable to that of contrast-enhanced ultrasonography (CEUS) in detecting segmental congestion among patients undergoing living donor liver transplantation (LDLT).
Methods:
Data from 63 patients who underwent LDLT between May and December 2022 were retrospectively analyzed. MFI and CEUS data collected on the first postoperative day were quantified. Segmental congestion was assessed based on imaging findings and laboratory data, including liver enzymes and total bilirubin levels. The reference standard was a postoperative contrast-enhanced computed tomography scan performed within 2 weeks of surgery. Additionally, a subgroup analysis examined patients who underwent reconstruction of the middle hepatic vein territory.
Results:
The sensitivity and specificity of MFI were 73.9% and 67.5%, respectively. In comparison, CEUS demonstrated a sensitivity of 78.3% and a specificity of 75.0%. These findings suggest comparable diagnostic performance, with no significant differences in sensitivity (P=0.655) or specificity (P=0.257) between the two modalities. Additionally, early postoperative laboratory values did not show significant differences between patients with and without congestion. The subgroup analysis also indicated similar diagnostic performance between MFI and CEUS.
Conclusion
MFI without contrast enhancement yielded results comparable to those of CEUS in detecting segmental congestion after LDLT. Therefore, MFI may be considered a viable alternative to CEUS.
4.Comparison of micro-flow imaging and contrast-enhanced ultrasonography in assessing segmental congestion after right living donor liver transplantation
Taewon HAN ; Woo Kyoung JEONG ; Jaeseung SHIN ; Dong Ik CHA ; Kyowon GU ; Jinsoo RHU ; Jong Man KIM ; Gyu-Seong CHOI
Ultrasonography 2024;43(6):469-477
Purpose:
This study aimed to determine whether micro-flow imaging (MFI) offers diagnostic performance comparable to that of contrast-enhanced ultrasonography (CEUS) in detecting segmental congestion among patients undergoing living donor liver transplantation (LDLT).
Methods:
Data from 63 patients who underwent LDLT between May and December 2022 were retrospectively analyzed. MFI and CEUS data collected on the first postoperative day were quantified. Segmental congestion was assessed based on imaging findings and laboratory data, including liver enzymes and total bilirubin levels. The reference standard was a postoperative contrast-enhanced computed tomography scan performed within 2 weeks of surgery. Additionally, a subgroup analysis examined patients who underwent reconstruction of the middle hepatic vein territory.
Results:
The sensitivity and specificity of MFI were 73.9% and 67.5%, respectively. In comparison, CEUS demonstrated a sensitivity of 78.3% and a specificity of 75.0%. These findings suggest comparable diagnostic performance, with no significant differences in sensitivity (P=0.655) or specificity (P=0.257) between the two modalities. Additionally, early postoperative laboratory values did not show significant differences between patients with and without congestion. The subgroup analysis also indicated similar diagnostic performance between MFI and CEUS.
Conclusion
MFI without contrast enhancement yielded results comparable to those of CEUS in detecting segmental congestion after LDLT. Therefore, MFI may be considered a viable alternative to CEUS.
5.Simultaneous Prostate Target Biopsy Integrated With Radical Prostatectomy: A Pilot Study Omitting Preoperative Systematic Biopsy
Tae Young PARK ; Jae Young HWANG ; Seong Woo YUN ; Chang Wan HYUN ; Sung Goo YOON ; Seung Bin KIM ; Tae Il NOH ; Ji Sung SHIM ; Min Goo PARK ; Seok Ho KANG ; Sung Gu KANG
Journal of Urologic Oncology 2024;22(3):196-200
Purpose:
This study evaluates the viability of a new method that employs transperineal targeted biopsy with frozen section analysis immediately followed by robot-assisted radical prostatectomy (RARP), bypassing the traditional systematic biopsy deemed essential by current guidelines.
Materials and Methods:
Patient selection was based on the following inclusion criteria: those who underwent magnetic resonance imaging (MRI)-ultrasound fusion-targeted biopsy with frozen section analysis and concurrent RARP. Eligibility also required features indicative of Prostate Imaging-Reporting and Data System (PI-RADS) 5 lesion on multiparametric MRI, along with one of these additional criteria: (1) MRI evidence suggesting extracapsular extension (ECE) with a prostate-specific antigen (PSA) level >10 ng/mL, or (2) a PSA level > 20 ng/mL.
Results:
Twelve patients were enrolled in this study according to inclusion criteria. The median age (interquartile range) was 73.5 (69.5–75.3) years and PSA was 22.9 (17.0–29.9) ng/mL. Three patients had PI-RADS 5 lesions, and 9 had PI-RADS 5 lesions with findings of ECE. In all cases, the diagnosis based on frozen sections confirmed adenocarcinoma. Following confirmation, each patient underwent immediate RARP. According to the final pathology report, 2 patients had International Society of Urological Pathology (ISUP) grade 2 disease, 7 patients had ISUP grade 3, 1 had ISUP grade 4, and 2 had ISUP grade 5 disease. Four patients had stage pT2 disease, 3 had stage pT3a, and 5 had stage pT3b. The median immediate reporting time of the target biopsy frozen section was 20 (19.3–24.5) minutes. No perioperative complications related to target biopsy were observed.
Conclusion
For patients with a strong suspicion of prostate cancer and a PI-RADS 5 lesion, integrating simultaneous prostate frozen target biopsy with radical prostatectomy may offer a feasible treatment alternative, obviating the necessity for a preoperative systematic biopsy.
6.The association between the severity of erectile dysfunction and left ventricular diastolic dysfunction in patients with and without cardiovascular disease
Chang Wan HYUN ; Jae Young HWANG ; Seong Woo YUN ; Tae Young PARK ; Sung Goo YOON ; Seung Bin KIM ; Tae Il NOH ; Sung Gu KANG ; Seok Ho KANG ; Dong-Hyuk CHO ; Ji Sung SHIM
Investigative and Clinical Urology 2024;65(2):165-172
Purpose:
Erectile dysfunction (ED) is considered a microvascular disorder and serves as an indicator for the potential development of cardiovascular disease (CVD). Although left ventricular diastolic dysfunction (LVDD) reflects early myocardial damage caused by microvascular disorders, the association between ED and LVDD remains poorly elucidated.
Materials and Methods:
A cross-sectional study was conducted on 123 patients with ED. They underwent RigiScan, and conventional echocardiography, and attempted International Index of Erectile Function (IIEF) questionnaire. ED severity was evaluated by measuring changes in the penile base circumference and duration of penile rigidity (≥70%) during erection. The early diastolic velocity of mitral inflow (E) and early diastolic velocity of the mitral annulus (e′) were measured using echocardiography. The patients were grouped based on the presence of CVD.
Results:
Among 123 patients, 29 had CVD and 94 did not. Patients with CVD exhibited more pronounced ED and more severe LVDD. Associations between increased penile circumference with echocardiographic parameters were more prominent in patients with CVD than in those without CVD (ΔTtop and e′ wave, r=0.508 and r=0.282, respectively, p for interaction=0.033; ΔTbase and E/e′ ratio, r=-0.338 and r=-0.293, respectively, p for interaction <0.001). In the multivariate linear regression, the increase of penile base circumference was an independent risk factor for LVDD (e′, B=0.503; E/e′ ratio, B=-1.416, respectively, p<0.001).
Conclusions
ED severity correlated well with LV diastolic dysfunction, particularly in the presence of CVD. This study highlighted the potential role of ED assessment as early indicator of CVD development.
7.Time Series Changes in Indices of Diabetes Management from the 2008-2022 Korea Community Health Survey
So Yeon RYU ; Seong Woo CHOI ; So Jung JEONG ; Hyae Min GU
Journal of Agricultural Medicine & Community Health 2024;49(3):179-193
Objectives:
This study aimed to determine the time-series changes in provincial diabetes management indices using by results of the 2008-2022 Korea Community Health Survey.
Methods:
We collected diabetes diagnosis experience rate, treatment rate for people diagnosed with diabetes, annual screening rate for diabetic eye disease complications, and annual screening rate for diabetic kidney disease complications with age-standardized rates from the Regional Health Statistics. The unit of analysis was the nation and 17 provinces and the time-series trend analysis was performed by joinpoint regression using the Joinpoint Regression Program, and the annual percent change (APC) and average APC (AAPC) were estimated, and statistical significance was tested using 95% confidence interval (CI).
Results:
From 2008-2022, the national AAPC (95% CI) for diabetes diagnosis experience rate steadily increased to 2.77 (2.25-3.27), increasing in all regions, excluding Sejong. The national AAPC for treatment rate for people diagnosed with diabetes was 0.75 (0.47-1.04), with a slight but steady trend toward improvement, excluding Daejeon, Sejong, and Jeonbuk, which showed significant improvement. The national AAPCs for annual screening rates for diabetic eye disease and kidney disease complications were 1.82 (0.99-2.66) and 1.95 (0.60-3. 41), respectively, and the area with the largest change was Sejong.
Conclusions
In Korea, the diabetes management indices tended to increase and improve, but the trends among provinces varied. Therefore, efforts are needed to address regional disparities in diabetes management.
8.Simultaneous Prostate Target Biopsy Integrated With Radical Prostatectomy: A Pilot Study Omitting Preoperative Systematic Biopsy
Tae Young PARK ; Jae Young HWANG ; Seong Woo YUN ; Chang Wan HYUN ; Sung Goo YOON ; Seung Bin KIM ; Tae Il NOH ; Ji Sung SHIM ; Min Goo PARK ; Seok Ho KANG ; Sung Gu KANG
Journal of Urologic Oncology 2024;22(3):196-200
Purpose:
This study evaluates the viability of a new method that employs transperineal targeted biopsy with frozen section analysis immediately followed by robot-assisted radical prostatectomy (RARP), bypassing the traditional systematic biopsy deemed essential by current guidelines.
Materials and Methods:
Patient selection was based on the following inclusion criteria: those who underwent magnetic resonance imaging (MRI)-ultrasound fusion-targeted biopsy with frozen section analysis and concurrent RARP. Eligibility also required features indicative of Prostate Imaging-Reporting and Data System (PI-RADS) 5 lesion on multiparametric MRI, along with one of these additional criteria: (1) MRI evidence suggesting extracapsular extension (ECE) with a prostate-specific antigen (PSA) level >10 ng/mL, or (2) a PSA level > 20 ng/mL.
Results:
Twelve patients were enrolled in this study according to inclusion criteria. The median age (interquartile range) was 73.5 (69.5–75.3) years and PSA was 22.9 (17.0–29.9) ng/mL. Three patients had PI-RADS 5 lesions, and 9 had PI-RADS 5 lesions with findings of ECE. In all cases, the diagnosis based on frozen sections confirmed adenocarcinoma. Following confirmation, each patient underwent immediate RARP. According to the final pathology report, 2 patients had International Society of Urological Pathology (ISUP) grade 2 disease, 7 patients had ISUP grade 3, 1 had ISUP grade 4, and 2 had ISUP grade 5 disease. Four patients had stage pT2 disease, 3 had stage pT3a, and 5 had stage pT3b. The median immediate reporting time of the target biopsy frozen section was 20 (19.3–24.5) minutes. No perioperative complications related to target biopsy were observed.
Conclusion
For patients with a strong suspicion of prostate cancer and a PI-RADS 5 lesion, integrating simultaneous prostate frozen target biopsy with radical prostatectomy may offer a feasible treatment alternative, obviating the necessity for a preoperative systematic biopsy.
9.Comparison of micro-flow imaging and contrast-enhanced ultrasonography in assessing segmental congestion after right living donor liver transplantation
Taewon HAN ; Woo Kyoung JEONG ; Jaeseung SHIN ; Dong Ik CHA ; Kyowon GU ; Jinsoo RHU ; Jong Man KIM ; Gyu-Seong CHOI
Ultrasonography 2024;43(6):469-477
Purpose:
This study aimed to determine whether micro-flow imaging (MFI) offers diagnostic performance comparable to that of contrast-enhanced ultrasonography (CEUS) in detecting segmental congestion among patients undergoing living donor liver transplantation (LDLT).
Methods:
Data from 63 patients who underwent LDLT between May and December 2022 were retrospectively analyzed. MFI and CEUS data collected on the first postoperative day were quantified. Segmental congestion was assessed based on imaging findings and laboratory data, including liver enzymes and total bilirubin levels. The reference standard was a postoperative contrast-enhanced computed tomography scan performed within 2 weeks of surgery. Additionally, a subgroup analysis examined patients who underwent reconstruction of the middle hepatic vein territory.
Results:
The sensitivity and specificity of MFI were 73.9% and 67.5%, respectively. In comparison, CEUS demonstrated a sensitivity of 78.3% and a specificity of 75.0%. These findings suggest comparable diagnostic performance, with no significant differences in sensitivity (P=0.655) or specificity (P=0.257) between the two modalities. Additionally, early postoperative laboratory values did not show significant differences between patients with and without congestion. The subgroup analysis also indicated similar diagnostic performance between MFI and CEUS.
Conclusion
MFI without contrast enhancement yielded results comparable to those of CEUS in detecting segmental congestion after LDLT. Therefore, MFI may be considered a viable alternative to CEUS.
10.Time Series Changes in Indices of Diabetes Management from the 2008-2022 Korea Community Health Survey
So Yeon RYU ; Seong Woo CHOI ; So Jung JEONG ; Hyae Min GU
Journal of Agricultural Medicine & Community Health 2024;49(3):179-193
Objectives:
This study aimed to determine the time-series changes in provincial diabetes management indices using by results of the 2008-2022 Korea Community Health Survey.
Methods:
We collected diabetes diagnosis experience rate, treatment rate for people diagnosed with diabetes, annual screening rate for diabetic eye disease complications, and annual screening rate for diabetic kidney disease complications with age-standardized rates from the Regional Health Statistics. The unit of analysis was the nation and 17 provinces and the time-series trend analysis was performed by joinpoint regression using the Joinpoint Regression Program, and the annual percent change (APC) and average APC (AAPC) were estimated, and statistical significance was tested using 95% confidence interval (CI).
Results:
From 2008-2022, the national AAPC (95% CI) for diabetes diagnosis experience rate steadily increased to 2.77 (2.25-3.27), increasing in all regions, excluding Sejong. The national AAPC for treatment rate for people diagnosed with diabetes was 0.75 (0.47-1.04), with a slight but steady trend toward improvement, excluding Daejeon, Sejong, and Jeonbuk, which showed significant improvement. The national AAPCs for annual screening rates for diabetic eye disease and kidney disease complications were 1.82 (0.99-2.66) and 1.95 (0.60-3. 41), respectively, and the area with the largest change was Sejong.
Conclusions
In Korea, the diabetes management indices tended to increase and improve, but the trends among provinces varied. Therefore, efforts are needed to address regional disparities in diabetes management.

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