Journal of the Korean Society of Radiology最新文献_第6页

US Features of the Parathyroid Glands: An Intraoperative Surgical Specimen Study. 甲状旁腺的US特征:术中手术标本研究。

Journal of the Korean Society of Radiology Pub Date : 2023-05-01 DOI: 10.3348/jksr.2022.0104

Wooyul Paik, Jong Cheol Lee, Byeong-Joo Noh, Dong Gyu Na

{"title":"US Features of the Parathyroid Glands: An Intraoperative Surgical Specimen Study.","authors":"Wooyul Paik, Jong Cheol Lee, Byeong-Joo Noh, Dong Gyu Na","doi":"10.3348/jksr.2022.0104","DOIUrl":"https://doi.org/10.3348/jksr.2022.0104","url":null,"abstract":"Purpose: This study aimed to evaluate the US features of the parathyroid glands (PTGs) using surgical specimens of normal PTGs obtained during thyroid surgery.Materials and methods: This study included 34 normal PTGs from 17 consecutive patients who underwent thyroid surgery between December 2020 and March 2021. All normal PTGs were histologically confirmed by intraoperative frozen-section biopsy for autotransplantation. Surgically resected parathyroid specimens were scanned in sterile normal saline using high-resolution US prior to autotransplantation. The US features of echogenicity (hyperechogenicity or hypoechogenicity), echotexture (homogeneous or heterogeneous), size, and shape (ovoid or round) were retrospectively evaluated. The echogenicity of the three PTGs was compared with that of the thyroid parenchyma of the resected thyroid specimens in two patients.Results: All PTGs showed hyperechogenicity similar to that of gauze soaked in normal saline. Homogeneous hyperechogenicity was observed in 32/34 (94.1%) patients, and the echogenicity of the three PTGs was hyperechoic compared with that of the thyroid parenchyma. The long diameter of the PTGs ranged from 5.1 mm to 9.8 mm (mean, 7.1 mm) and the shape of the PTGs was ovoid in 33/34 (97.1%) patients.Conclusion: The echogenicity of normal PTG specimens was consistently hyperechoic, and the small ovoid homogeneously hyperechoic structure was a characteristic US feature of the PTGs.","PeriodicalId":17455,"journal":{"name":"Journal of the Korean Society of Radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/3d/8d/jksr-84-596.PMC10265225.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9648122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prediction of Amyloid β-Positivity with both MRI Parameters and Cognitive Function Using Machine Learning. 利用机器学习预测淀粉样蛋白β阳性与MRI参数和认知功能。

Journal of the Korean Society of Radiology Pub Date : 2023-05-01 DOI: 10.3348/jksr.2022.0084

Hye Jin Park, Ji Young Lee, Jin-Ju Yang, Hee-Jin Kim, Young Seo Kim, Ji Young Kim, Yun Young Choi

{"title":"Prediction of Amyloid β-Positivity with both MRI Parameters and Cognitive Function Using Machine Learning.","authors":"Hye Jin Park, Ji Young Lee, Jin-Ju Yang, Hee-Jin Kim, Young Seo Kim, Ji Young Kim, Yun Young Choi","doi":"10.3348/jksr.2022.0084","DOIUrl":"https://doi.org/10.3348/jksr.2022.0084","url":null,"abstract":"Purpose: To investigate the MRI markers for the prediction of amyloid β (Aβ)-positivity in mild cognitive impairment (MCI) and Alzheimer's disease (AD), and to evaluate the differences in MRI markers between Aβ-positive (Aβ [+]) and -negative groups using the machine learning (ML) method.Materials and methods: This study included 139 patients with MCI and AD who underwent amyloid PET-CT and brain MRI. Patients were divided into Aβ (+) (n = 84) and Aβ-negative (n = 55) groups. Visual analysis was performed with the Fazekas scale of white matter hyperintensity (WMH) and cerebral microbleeds (CMB) scores. The WMH volume and regional brain volume were quantitatively measured. The multivariable logistic regression and ML using support vector machine, and logistic regression were used to identify the best MRI predictors of Aβ-positivity.Results: The Fazekas scale of WMH (p = 0.02) and CMB scores (p = 0.04) were higher in Aβ (+). The volumes of hippocampus, entorhinal cortex, and precuneus were smaller in Aβ (+) (p < 0.05). The third ventricle volume was larger in Aβ (+) (p = 0.002). The logistic regression of ML showed a good accuracy (81.1%) with mini-mental state examination (MMSE) and regional brain volumes.Conclusion: The application of ML using the MMSE, third ventricle, and hippocampal volume is helpful in predicting Aβ-positivity with a good accuracy.","PeriodicalId":17455,"journal":{"name":"Journal of the Korean Society of Radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/3e/34/jksr-84-638.PMC10265247.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9654477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Imaging of Umbilical Venous Catheter-Related Hepatic Complications in Neonates. 新生儿脐静脉导管相关肝脏并发症的影像学分析。

Journal of the Korean Society of Radiology Pub Date : 2023-05-01 DOI: 10.3348/jksr.2022.0056

Min Ju Kim, So-Young Yoo, Tae Yeon Jeon, Ji Hye Kim, Yu Jin Kim

引用次数: 0

Gerstmann-Sträussler-Scheinker Disease: A Case Report. Gerstmann-Sträussler-Scheinker疾病:一个病例报告。

Journal of the Korean Society of Radiology Pub Date : 2023-05-01 DOI: 10.3348/jksr.2022.0089

Minji Shin, Donghyun Kim, Young Jin Heo, Jin Wook Baek, Suyoung Yun, Hae Woong Jeong

引用次数: 0

[Perianal Fistula: An Overview]. [肛周瘘:综述]。

Journal of the Korean Society of Radiology Pub Date : 2023-05-01 DOI: 10.3348/jksr.2023.0018

Min Ju Kim

引用次数: 0

Unusual Manifestation of Immunoglobulin G4-Related Disease Involving the Upper Arm: A Case Report. 免疫球蛋白g4相关疾病累及上臂的异常表现1例

Journal of the Korean Society of Radiology Pub Date : 2023-05-01 DOI: 10.3348/jksr.2022.0018

Jin Hee Park, Sun Joo Lee, Hye Jung Choo

引用次数: 0

Imaging Findings of Breast Metastasis from Malignant Peripheral Nerve Sheath Tumor of Mediastinum: A Case Report. 乳腺纵隔恶性周围神经鞘肿瘤转移的影像学表现1例。

Journal of the Korean Society of Radiology Pub Date : 2023-05-01 DOI: 10.3348/jksr.2022.0116

So Hyeong Park, Ji Yeon Park, Mee Joo

引用次数: 0

Added Value of Structured Reporting for US of the Pediatric Appendix: Additional CT Examinations and Negative Appendectomy. 结构化报告对儿童阑尾US的附加价值:额外的CT检查和阴性阑尾切除术。

Journal of the Korean Society of Radiology Pub Date : 2023-05-01 DOI: 10.3348/jksr.2022.0027

Keonwoo Choi, Ji Young Choi, Hyuk Jung Kim, Hyun Jin Kim, Suk Ki Jang

{"title":"Added Value of Structured Reporting for US of the Pediatric Appendix: Additional CT Examinations and Negative Appendectomy.","authors":"Keonwoo Choi, Ji Young Choi, Hyuk Jung Kim, Hyun Jin Kim, Suk Ki Jang","doi":"10.3348/jksr.2022.0027","DOIUrl":"https://doi.org/10.3348/jksr.2022.0027","url":null,"abstract":"Purpose: This study aimed to determine the incremental value of using a structured report (SR) for US examinations of the pediatric appendix.Materials and methods: Between January 2009 and June 2016, 1150 pediatric patients with suspected appendicitis who underwent US examinations of the appendix were included retrospectively. In November 2012, we developed a five-point scale SR for appendix US examinations. The patients were divided into two groups according to the form of the US report: free-text or SR. The primary clinical outcomes were compared between the two groups, including the rate of CT imaging following US examinations, the negative appendectomy rate (NAR), and the appendiceal perforation rate (PR).Results: In total, 550 patients were included in the free-text group and 600 patients in the SR group. The rate of additional CT examinations decreased by 5.3% in the SR group (8.2%, p = 0.003), and the NAR decreased by 8.4% in the SR group (7.8%, p = 0.028). There was no statistical difference in the appendiceal PR (37.6% vs. 48.0%, p = 0.078).Conclusion: The use of an SR to evaluate US examinations for suspected pediatric appendicitis results in lower CT use and fewer negative appendectomies without an increase in appendiceal PR.","PeriodicalId":17455,"journal":{"name":"Journal of the Korean Society of Radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/b3/ac/jksr-84-653.PMC10265224.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9660534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

[Mammography-Guided Interventional Procedure]. [乳房x线摄影引导介入手术]。

Journal of the Korean Society of Radiology Pub Date : 2023-03-01 DOI: 10.3348/jksr.2022.0145

Woo Jung Choi, Hak Hee Kim

引用次数: 0

Placement of a Subclavian Tunneled Hemodialysis Catheter with the Patient's Arm Raised May Reduce the Risk of Complications: Two Cases Report. 锁骨下隧道式血液透析导管放置患者手臂抬高可降低并发症的风险:两例报告。

Journal of the Korean Society of Radiology Pub Date : 2023-03-01 DOI: 10.3348/jksr.2022.0096

Jimin Yoo, Dong Jae Shim, Doyoung Kim, Seung Hwan Baek, Chang Suk Park, Jeong Whee Lee

{"title":"Placement of a Subclavian Tunneled Hemodialysis Catheter with the Patient's Arm Raised May Reduce the Risk of Complications: Two Cases Report.","authors":"Jimin Yoo, Dong Jae Shim, Doyoung Kim, Seung Hwan Baek, Chang Suk Park, Jeong Whee Lee","doi":"10.3348/jksr.2022.0096","DOIUrl":"https://doi.org/10.3348/jksr.2022.0096","url":null,"abstract":"The subclavian vein is an uncommon route for tunneled hemodialysis catheter (tHDC) placement because of its potency for future dialysis access. However, when favored access routes have been exhausted because of repeated catheterization or limited life expectancy, the subclavian vein can be used for urgent hemodialysis. A subclavian catheterization has a technical problem. The subclavian vein often forms a right angle with the vena cava, and advancing stiff peel-away sheath can cause a vascular injury. However, raising the patient's arm can alter the position of the guidewire and, therefore, change the angle of the vein favorable for tHDC placement. Herein, we report two patients who underwent subclavian catheterization; one experienced an injury to the superior vena cava after undergoing the conventional procedure, whereas the other patient with raised arm during the catheterization procedure had safe catheter placement.","PeriodicalId":17455,"journal":{"name":"Journal of the Korean Society of Radiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ec/71/jksr-84-477.PMC10083629.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9674329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0