Young Hen Lee
Korea University
Internal medicineRadiologySurgeryPathologyMagnetic resonance imagingUltrasoundCardiologyRetrospective cohort studyEchogenicityBiopsyFine-needle aspirationThyroid nodulesLymphThyroid cancerCalcificationTask forceNuclear medicineThyroidComputed tomographyMedicine
Publications 86
#1Taeho Ha (KU: Korea University)
#2Wooil Kim (University of Virginia Health System)H-Index: 1
Last. Yu-Whan Oh (KU: Korea University)H-Index: 4
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OBJECTIVES To explore the importance of quantitative characteristics of dual-energy CT (DECT) between pulmonary metastasis and benign lung nodules in thyroid cancer. METHODS In this retrospective study, we identified 63 patients from our institution's database with pathologically proven thyroid cancer who underwent DECT to assess pulmonary metastasis. Among these patients, 22 had 55 pulmonary metastases, and 41 had 97 benign nodules. If nodules showed increased iodine uptake on I-131 single-phot...
#1Hyeonbin Lee (KU: Korea University)
#2Hyung Suk Seo (Eulji University)H-Index: 13
Last. Chol Shin (KU: Korea University)H-Index: 53
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To evaluate the individual and combined effects of obesity and muscle mass on brain volume in a community-dwelling healthy older population. One thousand two hundred nine participants (M:F = 574:635, mean age 63.6 ± 6.9 years) were included. The cross-sectional area of visceral fat (VF), the height-adjusted appendicular skeletal muscle mass (ASM/height2), and the ratio of thigh muscle to visceral fat (TM/VF) represented obesity, muscle mass, and their integrated value, respectively. Linear regre...
3 CitationsSource
#1Ji Ye Lee (Seoul National University Hospital)H-Index: 7
#2Jung Hwan Baek (UOU: University of Ulsan)H-Index: 59
Last. Dong Gyu NaH-Index: 53
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Imaging plays a key role in the diagnosis and characterization of thyroid diseases, and the information provided by imaging studies is essential for management planning. A referral guideline for imaging studies may help physicians make reasonable decisions and minimize the number of unnecessary examinations. The Korean Society of Thyroid Radiology (KSThR) developed imaging guidelines for thyroid nodules and differentiated thyroid cancer using an adaptation process through a collaboration between...
2 CitationsSource
#1Eun Ju HaH-Index: 27
#2Jung Hee ShinH-Index: 30
Last. Chang Yoon LeeH-Index: 6
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PURPOSE This study compared the diagnostic performance of the modified Korean Thyroid Imaging Reporting and Data System (K-TIRADS) for thyroid malignancy with three international guidelines. METHODS From June to September 2015, 5,708 thyroid nodules (≥1.0 cm) in 5,081 consecutive patients who underwent thyroid ultrasound (US) at 26 institutions were evaluated. The US features of the thyroid nodules were retrospectively reviewed and classified according to all four guidelines. In the modified K-T...
#1Arim Park (SKKU: Sungkyunkwan University)H-Index: 2
#2Young Hen Lee (KU: Korea University)H-Index: 18
Last. Hyung Suk Seo (KU: Korea University)H-Index: 13
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PURPOSE Although virtual non-contrast (VNC) successfully removes iodinated contrast, uncertainty exists regarding the feasibility of VNC to suppress iodine for detecting thyroid calcification. Therefore, we evaluated whether both intrinsic and extrinsic iodine attenuation were suppressed on VNC images. MATERIAL AND METHODS We enrolled 128 patients (male: female 17:111; age 48.0 ± 10.4 years) who underwent dual-layer dual-energy CT (DL-DECT) examination before their thyroid cancer surgeries. Two ...
#1Seung Kwan Kim (KU: Korea University)H-Index: 1
#2Hyung Suk Seo (KU: Korea University)H-Index: 13
Last. Sang Il Suh (KU: Korea University)H-Index: 22
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Abstract Objective The purpose of this study was to estimate the incidence and clinical significance of thyroid isthmus agenesis based on multi-detector CT imaging in a large-scale study. Methods Data from 1601 patients who underwent neck multi-detector CT at our institution from January 2015 to March 2016 were included in this retrospective study. The morphology of each patient's thyroid gland was evaluated. We classified thyroid isthmus agenesis into two subgroups according to the thickness of...
#1Cherry Kim (KU: Korea University)H-Index: 6
#2Wooil Kim (SMC: Samsung Medical Center)H-Index: 4
Last. Ki Yeol Lee (KU: Korea University)H-Index: 15
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Computed tomography (CT) is an important imaging modality in evaluating thoracic malignancies. The clinical utility of dual-energy spectral computed tomography (DESCT) has recently been realized. DESCT allows for virtual monoenergetic or monochromatic imaging, virtual non-contrast or unenhanced imaging, iodine concentration measurement, and effective atomic number (Zeff map). The application of information gained using this technique in the field of thoracic oncology is important, and therefore ...
3 CitationsSource
#1Hyeri SeokH-Index: 5
#2Ji Hoon JeonH-Index: 5
Last. Dae Won ParkH-Index: 28
view all 9 authors...
#1Hyeri Seok (KU: Korea University)H-Index: 5
#2Ji Hoon Jeon (KU: Korea University)H-Index: 5
Last. Dae Won Park (KU: Korea University)H-Index: 28
view all 9 authors...
The therapeutic response of cervical tuberculous lymphadenitis (CTBL) may be delayed or paradoxical, with the frequent development of residual lymph nodes (LNs) during and after antituberculous treatment. We investigated the incidence of residual LNs and the clinical, radiological, microbiological, and pathologic responses of patients with CTBL after 6 months of antituberculous therapy. The medical records of HIV-negative adult patients with CTBL diagnosed between July 2009 and December 2017 wer...
6 CitationsSource
#1Do Hyung Lee (KU: Korea University)H-Index: 2
#2Young Hen Lee (KU: Korea University)H-Index: 18
Last. Kyung Sook Yang (KU: Korea University)H-Index: 18
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BACKGROUND: To determine the usefulness of dual-energy CT (DECT) iodine quantification to classify the focal thyroid lesions. METHODS: We retrospectively enrolled a total of 76 cytopathologically confirmed focal thyroid lesions (mean size: 1.9 cm). After drawing a region of interest on the DECT-derived iodine maps, the obtained iodine concentration values of thyroid nodules (IC_N) and normalized IC_N were compared between 3 groups: papillary thyroid carcinoma (PTC), benign nodule, and cyst. RESU...
8 CitationsSource