Korean Journal of Radiology最新文献

{"title":"Response to \"Artificial Intelligence Combined With Chest Radiography: New Hope for the Opportunistic Screening for Osteoporosis\".","authors":"Chiao-Lin Hsu, Hon-Yi Shi","doi":"10.3348/kjr.2025.0102","DOIUrl":"10.3348/kjr.2025.0102","url":null,"abstract":"","PeriodicalId":17881,"journal":{"name":"Korean Journal of Radiology","volume":" ","pages":"392-393"},"PeriodicalIF":4.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955386/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biennial Mammography Performance in the Korean National Cancer Screening Program From 2009 to 2020.","authors":"Dong Jun Kim, Nan-He Yoon, Jae Kwan Jun, Mina Suh, Sunhwa Lee, Seongju Kim, Horim A Hwang, Seung Eun Jung, Hooyeon Lee","doi":"10.3348/kjr.2024.0866","DOIUrl":"10.3348/kjr.2024.0866","url":null,"abstract":"<p><strong>Objective: </strong>Mammography is essential for reducing breast cancer mortality; however, its performance varies globally. This study aimed to evaluate mammography screening outcomes in Korea over 12 years and investigate regional variations.</p><p><strong>Materials and methods: </strong>We analyzed mammography data from 42 million Korean women, aged 40 years and older, who participated in the Korean National Cancer Screening Program (KNCSP) from 2009 to 2020. Performance metrics-including recall rate (RR), positive predictive value (PPV), sensitivity, specificity, false positive rate (FPR), cancer detection rate (CDR), interval cancer rate (ICR), and dense breast rate (DBR), were computed. Twelve-year trends in these metrics were analyzed using Joinpoint regression. Regional variations were also examined across Korea's 237 districts, stratified by age groups.</p><p><strong>Results: </strong>From 2009 to 2020, 42165405 mammography screenings were conducted through the KNCSP, increasing from 2821132 screenings in 2009 to 3596204 in 2020. The RR decreased from 17.2% in 2009 to 11.2% in 2020 (average annual percent change [AAPC] = -3.7%), while the PPV increased from 0.8% to 2.8%; AAPC = 10.7%), the CDR increased from 1.5 to 3.1 per 1000; AAPC = 7.3%), and the ICR rose from 0.9 to 1.6 per 1000; (AAPC = 5.2%). Regional variations were noted; however, differences in the RR, sensitivity, specificity, and FPR decreased over time.</p><p><strong>Conclusion: </strong>While mammography performance improved from 2009 to 2020, the PPV and sensitivity remain suboptimal, underscoring the need for continuous monitoring. Regional disparities in performance, although reduced, persist. These findings provide essential baseline data for improving mammography quality and addressing inequities in breast cancer screening.</p>","PeriodicalId":17881,"journal":{"name":"Korean Journal of Radiology","volume":" ","pages":"313-323"},"PeriodicalIF":4.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955388/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Artificial Intelligence Combined With Chest Radiography: New Hope for the Opportunistic Screening for Osteoporosis.","authors":"Hongnan Ye","doi":"10.3348/kjr.2025.0019","DOIUrl":"10.3348/kjr.2025.0019","url":null,"abstract":"","PeriodicalId":17881,"journal":{"name":"Korean Journal of Radiology","volume":" ","pages":"390-391"},"PeriodicalIF":4.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955377/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Training of Radiology Residents in Korea.","authors":"Jei Hee Lee, Ji Seon Park, A Leum Lee, Yun-Jung Lim, Seung Eun Jung","doi":"10.3348/kjr.2024.1151","DOIUrl":"10.3348/kjr.2024.1151","url":null,"abstract":"","PeriodicalId":17881,"journal":{"name":"Korean Journal of Radiology","volume":" ","pages":"291-293"},"PeriodicalIF":4.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955379/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combination of CT/MRI LI-RADS With Second-Line Contrast-Enhanced Ultrasound Using Sulfur Hexafluoride or Perfluorobutane for Diagnosing Hepatocellular Carcinoma in High-Risk Patients.","authors":"Yu Li, Sheng Li, Qing Li, Kai Li, Jing Han, Siyue Mao, Xiaohong Xu, Zhongzhen Su, Yanling Zuo, Shousong Xie, Hong Wen, Xuebin Zou, Jingxian Shen, Lingling Li, Jianhua Zhou","doi":"10.3348/kjr.2024.0980","DOIUrl":"10.3348/kjr.2024.0980","url":null,"abstract":"<p><strong>Objective: </strong>The CT/MRI Liver Imaging Reporting and Data System (LI-RADS) demonstrates high specificity with relatively limited sensitivity for diagnosing hepatocellular carcinoma (HCC) in high-risk patients. This study aimed to explore the possibility of improving sensitivity by combining CT/MRI LI-RADS v2018 with second-line contrast-enhanced ultrasound (CEUS) LI-RADS v2017 using sulfur hexafluoride (SHF) or perfluorobutane (PFB).</p><p><strong>Materials and methods: </strong>This retrospective analysis of prospectively collected multicenter data included high-risk patients with treatment-naive hepatic observations. The reference standard was pathological confirmation or a composite reference standard (only for benign lesions). Each participant underwent concurrent CT/MRI, SHF-enhanced US, and PFB-enhanced US examinations. The diagnostic performances for HCC of CT/MRI LI-RADS alone and three combination strategies (combining CT/MRI LI-RADS with either LI-RADS SHF, LI-RADS PFB, or a modified algorithm incorporating the Kupffer-phase findings for PFB [modified PFB]) were evaluated. For the three combination strategies, apart from the CT/MRI LR-5 criteria, HCC was diagnosed if CT/MRI LR-3 or LR-4 observations met the LR-5 criteria using LI-RADS SHF, LI-RADS PFB, or modified PFB.</p><p><strong>Results: </strong>In total, 281 participants (237 males; mean age, 55 ± 11 years) with 306 observations (227 HCCs, 40 non-HCC malignancies, and 39 benign lesions) were included. Using LI-RADS SHF, LI-RADS PFB, and modified PFB, 20, 23, and 31 CT/MRI LR-3/4 observations, respectively, were reclassified as LR-5, and all were pathologically confirmed as HCCs. Compared to CT/MRI LI-RADS alone (74%, 95% confidence interval [CI]: 68%-79%), the three combination strategies combining CT/MRI LI-RADS with either LI-RADS SHF, LI-RADS PFB, or modified PFB increased sensitivity (83% [95% CI: 77%-87%], 84% [95% CI: 79%-89%], 88% [95% CI: 83%-92%], respectively; all <i>P</i> < 0.001), while maintaining the specificity at 92% (95% CI: 84%-97%).</p><p><strong>Conclusion: </strong>The combination of CT/MRI LI-RADS with second-line CEUS using SHF or PFB improved the sensitivity of HCC diagnosis without compromising specificity.</p>","PeriodicalId":17881,"journal":{"name":"Korean Journal of Radiology","volume":" ","pages":"346-359"},"PeriodicalIF":4.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955382/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coronary Artery Dimension-Adjusted Subtended Myocardial Mass Obtained With Coronary CT Angiography as a Potential Biomarker of Myocardial Ischemia in Patients With Hypertrophic Cardiomyopathy.","authors":"Jung Han Woo, Hyewon Choi, Min Jae Cha","doi":"10.3348/kjr.2024.1143","DOIUrl":"10.3348/kjr.2024.1143","url":null,"abstract":"<p><strong>Objective: </strong>To compare coronary artery dimension-adjusted subtended myocardial mass between patients with hypertrophic cardiomyopathy (HCM) and a normal population without detectable atherosclerosis, and between HCM patients with and without chest pain.</p><p><strong>Materials and methods: </strong>Twenty-five patients with HCM but no detectable atherosclerosis on coronary computed tomography angiography (CCTA) were included in the study. This group comprised 14 patients with chest pain and 11 patients without chest pain. They were matched with 25 healthy participants based on sex, age, coronary dominance pattern, and body surface area. The minimal lumen area (MLA) and subtended myocardial volume (V_sub) were assessed in the left main (LM), proximal left anterior descending (pLAD), proximal left circumflex (pLCx), and proximal right coronary (pRCA) arteries. Additionally, an index of the subtended myocardial mass adjusted for the MLA, calculated as V_sub/MLA², was determined.</p><p><strong>Results: </strong>MLA was significantly larger in patients with HCM compared to the control group in LM (20.93 ± 6.31 mm² vs. 15.24 ± 3.90 mm², <i>P</i> < 0.001), pLAD (14.28 ± 3.55 mm² vs. 11.36 ± 2.07 mm², <i>P</i> = 0.001), pLCx (10.94 ± 3.60 mm² vs. 9.15 ± 2.93 mm², <i>P</i> = 0.045), and pRCA (13.41 ± 4.85 mm² vs. 11.22 ± 3.20 mm², <i>P</i> = 0.018). Despite an increase in coronary luminal area, patients with HCM exhibited significantly higher V_sub/MLA² compared to the control group in both the pLAD (403.56 ± 200.35 mm⁻¹ vs. 241.70 ± 85.87 mm⁻¹, <i>P</i> < 0.001) and the pRCA (186.06 ± 95.07 mm⁻¹ vs. 125.07 ± 70.18 mm⁻¹, <i>P</i> = 0.007). V_sub/MLA² was significantly elevated in patients with chest pain compared to those without in the pLAD (473.75 ± 227.38 mm⁻¹ vs. 314.24 ± 110.74 mm⁻¹, <i>P</i> = 0.018) and the pLCx (417.04 ± 182.65 mm⁻¹ vs. 275.29 ± 112.97 mm⁻¹, <i>P</i> = 0.044).</p><p><strong>Conclusion: </strong>CCTA-derived V_sub/MLA² may more accurately reflect the balance between myocardial blood supply and demand, offering insights into the occurrence of demand angina in patients with HCM without obstructive coronary artery disease.</p>","PeriodicalId":17881,"journal":{"name":"Korean Journal of Radiology","volume":"26 4","pages":"324-332"},"PeriodicalIF":4.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955385/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deep Learning-Accelerated Non-Contrast Abbreviated Liver MRI for Detecting Malignant Focal Hepatic Lesions: Dual-Center Validation.","authors":"So Hyun Park, Moon Hyung Choi, Bohyun Kim, Hyun-Soo Lee, Sungjin Yoon, Young Joon Lee, Dominik Nickel, Thomas Benkert","doi":"10.3348/kjr.2024.0862","DOIUrl":"10.3348/kjr.2024.0862","url":null,"abstract":"<p><strong>Objective: </strong>To compare a deep learning (DL)-accelerated non-enhanced abbreviated MRI (AMRI_DL) protocol with standard AMRI (AMRI_STD) of the liver in terms of image quality and malignant focal lesion detection.</p><p><strong>Materials and methods: </strong>This retrospective study included 155 consecutive patients (110 male; mean age 62.4 ± 11 years) from two sites who underwent standard liver MRI and additional AMRI_DL sequences, specifically DL-accelerated single-shot fast-spin echo (SSFSE_DL) and DL-accelerated diffusion-weighted imaging (DWI_DL). Additional MRI phantom experiments assessed signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and apparent diffusion coefficient (ADC) values. Three reviewers evaluated AMRI_DL and AMRI_STD protocols for image quality using a five-point Likert scale and identified malignant hepatic lesions. Image quality scores and per-lesion sensitivities were compared between AMRI_DL and AMRI_STD using the Wilcoxon signed-rank test and logistic regression with generalized estimating equations, respectively.</p><p><strong>Results: </strong>Phantom experiments demonstrated comparable SNR and higher CNR for SSFSE_DL compared to SSFSE_STD, with similar ADC values for DWI_DL and DWI_STD. Among the 155 patients, 130 (83.9%) had chronic liver disease or a history of intra- or extrahepatic malignancy. Of 104 malignant focal lesions in 64 patients, 58 (55.8%) were hepatocellular carcinomas (HCCs), 38 (36.5%) were metastases, four (3.8%) were cholangiocarcinomas, and four (3.8%) were lymphomas. The pooled per-lesion sensitivity across three readers was 97.6% for AMRI_DL, comparable to 97.6% for AMRI_STD. Compared with AMRI_STD, AMRI_DL demonstrated superior image quality regarding structural sharpness, artifacts, and noise (all <i>P</i> < 0.001) and reduced the average scan time by approximately 50% (2 min 29 sec vs. 4 min 11 sec). In patients with chronic liver disease, AMRI_DL achieved a 96.6% per-lesion sensitivity for HCC detection, similar to 96.5% for AMRI_STD (<i>P</i> > 0.05).</p><p><strong>Conclusion: </strong>The AMRI_DL protocol offers comparable sensitivity for detecting malignant focal lesions, including HCC while significantly enhancing image quality and reducing scan time by approximately 50% compared to AMRI_STD.</p>","PeriodicalId":17881,"journal":{"name":"Korean Journal of Radiology","volume":"26 4","pages":"333-345"},"PeriodicalIF":4.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955387/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crucial Role of Understanding in Human-Artificial Intelligence Interaction for Successful Clinical Adoption.","authors":"Seong Ho Park, Curtis P Langlotz","doi":"10.3348/kjr.2025.0071","DOIUrl":"10.3348/kjr.2025.0071","url":null,"abstract":"","PeriodicalId":17881,"journal":{"name":"Korean Journal of Radiology","volume":" ","pages":"287-290"},"PeriodicalIF":4.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955380/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Radiologist's Guide to IDH-Wildtype Glioblastoma for Efficient Communication With Clinicians: Part II-Essential Information on Post-Treatment Imaging.","authors":"Philipp Vollmuth, Philipp Karschnia, Felix Sahm, Yae Won Park, Sung Soo Ahn, Rajan Jain","doi":"10.3348/kjr.2024.0983","DOIUrl":"10.3348/kjr.2024.0983","url":null,"abstract":"<p><p>Owing to recent advancements in various postoperative treatment modalities, such as radiation, chemotherapy, antiangiogenic treatment, and immunotherapy, the radiological and clinical assessment of patients with isocitrate dehydrogenase-wildtype glioblastoma using post-treatment imaging has become increasingly challenging. This review highlights the challenges in differentiating treatment-related changes such as pseudoprogression, radiation necrosis, and pseudoresponse from true tumor progression and aims to serve as a guideline for efficient communication with clinicians for optimal management of patients with post-treatment imaging.</p>","PeriodicalId":17881,"journal":{"name":"Korean Journal of Radiology","volume":" ","pages":"368-389"},"PeriodicalIF":4.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955384/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feasibility and Safety of Transradial Access for Renal Artery Embolization: A Single Center Prospective Study.","authors":"Jihoon Kim, Hee Ho Chu, Kyung-Hyun Jung, Jin Hyoung Kim, Ji Hoon Shin","doi":"10.3348/kjr.2024.1324","DOIUrl":"10.3348/kjr.2024.1324","url":null,"abstract":"<p><strong>Objective: </strong>The objective of this study is to evaluate the feasibility and safety of renal artery embolization (RAE) via transradial access (TRA) in patients with renal angiomyolipoma (AML) or renal hemorrhage.</p><p><strong>Materials and methods: </strong>Data were collected for this prospective single-center study from 50 patients (51 ± 12 years; male:female, 11:39) who underwent RAE for renal AML (n = 46) or renal hemorrhage (n = 4) between November 2020 and January 2024. Patients with a Barbeau D waveform or a radial artery diameter of <1.5 mm were excluded. Technical success in patients with renal AML and renal hemorrhage was defined as achieving selective catheterization of the culprit artery with embolization, leading to flow stasis and the absence of bleeding evidence, respectively. Clinical success was indicated by a reduction in AML size on follow-up CT scans and the absence of bleeding signs without necessitating additional RAE. The EuroQol 5-Dimension 5-level (EQ-5D-5L) questionnaire was utilized to assess health-related quality of life (HRQoL).</p><p><strong>Results: </strong>In one patient with AML, embolization could not be performed following selective catheterization and angiography due to the lack of visible tumor vascularity, resulting in a technical success rate of 98% (49/50). The clinical success rate was 96% (48/50 patients). No instances of TRA failure, conversion to transfemoral access (TFA), or hemostasis failure were noted. During the follow-up period, no major adverse events associated with the RAE occurred. Two patients exhibited asymptomatic radial artery occlusion, and one patient displayed asymptomatic partial thrombosis of the renal artery at the first follow-up visit. The EQ-5D-5L scores were 0.90 (95% confidence interval [CI]: 0.86-0.95) within 24 hours post-procedure and 0.89 (95% CI: 0.85-0.92) at the first follow-up (<i>P</i> = 0.332).</p><p><strong>Conclusion: </strong>TRA is a feasible and safe approach for performing RAE in patients with renal AML or hemorrhage. RAE performed using TRA demonstrated high HRQoL outcomes and may serve as a viable alternative to TFA for performing RAE.</p>","PeriodicalId":17881,"journal":{"name":"Korean Journal of Radiology","volume":"26 4","pages":"360-367"},"PeriodicalIF":4.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955378/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}