Abnormal Finding of Left Femoral Bone Mineral Densitometry
May , 2025

Han-Kyung Seo

Abnormal finding was observed in the left femoral bone density image of a 55-year-old male patient who diagnosed a breast cancer. MRI results showed that it was a benign tumor similar to liposclerosing myxofibrous tumor(LSMT) sized about 2cm at left femoral neck. ......

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Comparative Analysis and Validation of Results by 25-OH-vitamin D3 RIA Reagents
May , 2025

Seul Gi Lim, Young Ji Lee, and Sun Ho Lee

Purpose: When vitamin D3 is deficient in the body, it leads to osteoporosis, fractures at high risk. In addition, vitamin D3 deficiency is also associated with the pathogenesis of certain cancers and other diseases including multiple sclerosis, type 1 diabetes. In fact, the number of prescriptions for vitamin D3 requested to ......

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Fact-Finding Report on Critical Value Reports of Nuclear Medicine Specimen Tests
May , 2025

Jun-Mo Park, Hung-Su Jung

Purpose: Critical value report (CVR) are intended to prevent delays in diagnosis and treatment, as results outside the reference range can cause serious harm to patients. After conducting a survey on the status of warning value reporting in each institution's laboratory that performs nuclear medicine specimen testing, the level of ......

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Impact of Delayed Sample Separation and Storage Conditions on Insulin Stability
May , 2025

Ji Jong Kwak, Hee Young Go, Seongsu Kim, and Nam Ju Lee

Purpose: Insulin assays are highly sensitive to pre-analytical handling issues. While numerous studies have reported that the stability of insulin in non-hemolyzed samples is affected by time and temperature, there is limited information regarding the impact of delayed sample separation. Although research on ......

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A Study on the Evaluation of Image Quality According to Changes in Reconstruction Parameters in Lu-177 Dotatate SPECT/CT Imaging
May , 2025

Cheolhong Park, Taeheon Kim and Hyunsoo Ko

Purpose: Lu-177 Dotatate SPECT/CT imaging is important for diagnosing and monitoring neuroendocrine tumors. While reconstruction protocols are well-established for scans like Tc-99m and I-131 SPECT/CT, standardized reconstruction conditions for Lu-177 Dotatate remain limited. This study aimed to determine ......

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Comparison and Evaluation of Bone and Soft Tissue Contrast According to Image Acquisition Time after Injection in Whole-Body Bone Scintigraphy
May , 2025

Tae Hoon Oh, Cheolhong Park, Dahyun Park and Hyun Soo Ko

Purpose This study evaluates the effect of uptake times (2.5 hours vs. 3.5 hours post-injection) on the diagnostic quality of whole-body bone scans using 99mTc -DPD, focusing on contrast between bone and soft tissue. The aim is to determine whether shorter uptake times can ensure sufficient diagnostic quality while ......

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Comparative Analysis of Dynamic and Static Salivary Gland Scintigraphy Using Ejection Fraction
May , 2025

Gi-Woong Jun, Young-Bin Kim

Purpose: This study aims to compare the ejection fraction (EF%) values derived from static and dynamic salivary gland scintigraphy and assess whether there are statistically significant differences between the two imaging techniques. Materials and Methods: Thirty patients (10 males, 20 females; mean age: 65.9 years) ......

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Clinical Implementations of 18F-fluoroestradiol(FES) PET/CT Scan and SUVmax Analysis between 18F-FES and 18F-FDG PET/CT
May , 2025

Young-Ran Woo, Jae-Kwang Ryu

Purpose: Breast cancer is the most common among women worldwide, with one in eight women receiving this diagnosis in their lifetime. The National Comprehensive Cancer Network (NCNN) recommends receptor type testing for all breast cancer patients, which helps predict outcomes and guide treatment decisions. Breast cancer has ......

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