Propensity score matching: a conceptual review for radiology researchers.

abstract：Objective:To measure inter-protocol agreement and analyze interchangeability on nodule classification between low-dose unenhanced CT and standard-dose enhanced CT. Materials and Methods:From nodule libraries containing both low-dose unenhanced and standard-dose enhanced CT, 80 solid and 80 subsolid (40 part-solid, 40 ...

journal_title：Korean journal of radiology

authors： Lee KH,Lee KW,Park JH,Han K,Kim J,Lee SM,Park CM

更新日期：2018-05-01 00:00:00

abstract：OBJECTIVE:The objective of this retrospective study was to develop and validate a simple diagnostic prediction model by using ultrasound (US) features of thyroid nodules obtained from multicenter retrospective data. MATERIALS AND METHODS:Patient data were collected from 20 different institutions and the data included ...

journal_title：Korean journal of radiology

authors： Kwak JY,Jung I,Baek JH,Baek SM,Choi N,Choi YJ,Jung SL,Kim EK,Kim JA,Kim JH,Kim KS,Lee JH,Lee JH,Moon HJ,Moon WJ,Park JS,Ryu JH,Shin JH,Son EJ,Sung JY,Na DG,Korean Society of Thyroid Radiology (KSThR).,Korean S

更新日期：2013-01-01 00:00:00

abstract：Objective:To investigate the diagnostic yield of contrast-enhanced computed tomography (CT) in Crohn's disease (CD) patients presenting with acute severe lower gastrointestinal bleeding (LGIB), and the role of CT in predicting the risk of rebleeding. Materials and Methods:A consecutive series of 110 CD patients presen...

journal_title：Korean journal of radiology

authors： Lee S,Ye BD,Park SH,Lee KJ,Kim AY,Lee JS,Kim HJ,Yang SK

更新日期：2018-11-01 00:00:00

abstract：OBJECTIVE:Although three-dimensional time-of-flight magnetic resonance angiography (3D TOF-MRA) is used frequently as a follow-up tool to assess the response of arteriovenous malformations (AVMs) after radiosurgery, the diagnostic accuracy of 3D TOF-MRA is not well known. We evaluated the diagnostic accuracy of contras...

journal_title：Korean journal of radiology

authors： Lee KE,Choi CG,Choi JW,Choi BS,Lee DH,Kim SJ,Kwon DH

更新日期：2009-07-01 00:00:00

abstract：:Magnetic resonance imaging (MRI) of the breast is used for various indications. Contrary to computed tomography as a staging tool, breast MRI focuses on the breast parenchyma and axilla. In spite of narrow field of view, many structures such as the anterior portion of the lungs, mediastinum, bony structures and the li...

journal_title：Korean journal of radiology

authors： Suh HJ,Choi JS,Ko K

更新日期：2014-07-01 00:00:00

abstract：:In order to relieve mechanical obstruction caused by rectal carcinoma, a bare rectal stent was inserted in the sigmoid colon of a 70-year-old female. The procedure was successful, and for one month the patient made good progress. She then complained of abdominal pain, however, and plain radiographs of the chest and ab...

journal_title：Korean journal of radiology

authors： Han YM,Lee JM,Lee TH

更新日期：2000-07-01 00:00:00

abstract：OBJECTIVE:To investigate the diagnostic performance of coronary computed tomography angiography (CCTA), stress dual-energy computed tomography perfusion (DE-CTP), stress perfusion single-photon emission computed tomography (SPECT), and the combinations of CCTA with myocardial perfusion imaging (CCTA + DE-CTP and CCTA +...

journal_title：Korean journal of radiology

authors： Chung HW,Ko SM,Hwang HK,So Y,Yi JG,Lee EJ

更新日期：2017-05-01 00:00:00

abstract：OBJECTIVE:To demonstrate the usefulness of 3-tesla (3T) magnetic resonance imaging (MRI) including T2-weighted imaging (T2WI), diffusion weighted imaging (DWI), time-of-flight (TOF) magnetic resonance angiography (MRA), T2*-weighted gradient recalled echo (GRE), and susceptibility weighted imaging (SWI) in diagnosing b...

journal_title：Korean journal of radiology

authors： Sohn CH,Lee HP,Park JB,Chang HW,Kim E,Kim E,Park UJ,Kim HT,Ku J

更新日期：2012-09-01 00:00:00

abstract：OBJECTIVE:To evaluate spine magnetic resonance imaging (MRI) inter-reader and intra-reader reliabilities using the thoracolumbar injury classification system and severity score (TLICS) and to analyze the effects of reader experience on reliability and the possible reasons for discordant interpretations. MATERIALS AND ...

journal_title：Korean journal of radiology

authors： Lee GY,Lee JW,Choi SW,Lim HJ,Sun HY,Kang Y,Chai JW,Kim S,Kang HS

更新日期：2015-07-01 00:00:00

abstract：:The Korean Society of Urogenital Radiology (KSUR) aimed to present a consensus statement for patient preparation, standard technique, and pain management in relation to transrectal ultrasound-guided prostate biopsy (TRUS-Bx) to reduce the variability in TRUS-Bx methodologies and suggest a nationwide guideline. The KSU...

journal_title：Korean journal of radiology

authors： Lee MS,Moon MH,Kim CK,Park SY,Choi MH,Jung SI,Korean Society of Urogenital Radiology (KSUR).

更新日期：2020-04-01 00:00:00

abstract：OBJECTIVE:We wanted to evaluate the image quality, diagnostic accuracy and radiation exposure of 64-slice dual-source CT (DSCT) coronary angiography according to the heart rate in symptomatic patients during daily clinical practice. MATERIALS AND METHODS:We performed a retrospective search for the DSCT coronary angiog...

journal_title：Korean journal of radiology

authors： Moon JH,Park EA,Lee W,Yin YH,Chung JW,Park JH,Lee HY,Kang HJ,Kim HS

更新日期：2011-05-01 00:00:00

abstract：OBJECTIVE:To explore the in-vivo 1H- MR spectral features of adnexal lesions and to characterize the spectral patterns of various pathologic entities. MATERIALS AND METHODS:Thirty-one patients with surgically and histopathologically confirmed adnexal lesions underwent short echo-time STEAM (stimulated echo acquisition...

journal_title：Korean journal of radiology

authors： Cho SW,Cho SG,Lee JH,Kim HJ,Lim MK,Kim JH,Suh CH

更新日期：2002-04-01 00:00:00

abstract：:[This corrects the article on p. 878 in vol. 15, PMID: 25469103.]. ...

journal_title：Korean journal of radiology

authors： Kara K,Ozturk E,Saglam M

更新日期：2015-01-01 00:00:00

abstract：:Advances in imaging-based management of acute ischemic stroke now provide crucial information such as infarct core, ischemic penumbra/degree of collaterals, vessel occlusion, and thrombus that helps in the selection of the best candidates for reperfusion therapy. It also predicts thrombolytic efficacy and benefit or p...

journal_title：Korean journal of radiology

authors： Na DG,Sohn CH,Kim EY

更新日期：2015-03-01 00:00:00

abstract：:[This corrects the article on p. 1153 in vol. 16, PMID: 26355278.]. ...

journal_title：Korean journal of radiology

authors： Yoon JH,Son JW,Chung H,Park CH,Kim YJ,Chang HJ,Hong GR,Kim TH,Ha JW,Choi BW,Rim SJ,Chung N,Choi EY

更新日期：2015-11-01 00:00:00

abstract：Objective:To investigate the technical safety and clinical efficacy of a double-stent system with long duodenal extension in patients with malignant extrahepatic biliary obstruction. Materials and Methods:This prospective study enrolled 48 consecutive patients (31 men, 17 women; mean age, 61 years; age range, 31-77 ye...

journal_title：Korean journal of radiology

authors： Gwon DI,Ko GY,Kim JW,Ko HK,Yoon HK,Sung KB

更新日期：2018-03-01 00:00:00

abstract：OBJECTIVE:To investigate the effects of hepatic radiofrequency ablation (RFA) in patients with malignant liver disease with respect to inflammation activation and stress response. MATERIALS AND METHODS:In an observational trial, we investigated the physiologic parameters of 17 patients (20 interventions) who underwent...

journal_title：Korean journal of radiology

authors： Schälte G,Henzler D,Waning C,Tacke J,Rossaint R,Mahnken AH

更新日期：2010-11-01 00:00:00

abstract：Objective:To assess clinical feasibility of low-attenuation cluster analysis in evaluation of chronic obstructive pulmonary disease (COPD). Materials and Methods:Subjects were 199 current and former cigarette smokers that underwent CT for quantification of COPD and had physiological measurements. Quantitative CT (QCT)...

journal_title：Korean journal of radiology

authors： Nambu A,Zach J,Kim SS,Jin G,Schroeder J,Kim YI,Bowler R,Lynch DA

更新日期：2018-01-01 00:00:00

abstract：Objective:To compare the T1-weighted spectral presaturation with inversion-recovery sequences (T1 SPIR) with T2-weighted turbo spin-echo sequences (T2 TSE) on 3T magnetic resonance arthrography (MRA) in the evaluation of the subscapularis (SSC) tendon tear with arthroscopic findings as the reference standard. Material...

journal_title：Korean journal of radiology

authors： Lee H,Ahn JM,Kang Y,Oh JH,Lee E,Lee JW,Kang HS

更新日期：2018-03-01 00:00:00

abstract：:Alveolar soft-part sarcoma is a rare soft tissue sarcoma of young adults with unknown histogenesis, and the organ most frequently involved in metastasis is the lung. We report the CT findings of three patients of pulmonary metastases of alveolar soft-part sarcoma, which manifested as clearly enhanced pulmonary nodules...

journal_title：Korean journal of radiology

authors： Choi JI,Goo JM,Seo JB,Kim HY,Park CK,Im JG

更新日期：2000-01-01 00:00:00

abstract：:Rectal submucosal lesions encompass a wide variety of benign and malignant tumors involving the rectum. With optical colonoscopy, any mass-like protrusion covered by normal mucosa, whether the underlying process is intramural or extramural in origin, may be reported as a submucosal lesion. Whereas the assessment of su...

journal_title：Korean journal of radiology

authors： Kim H,Kim JH,Lim JS,Choi JY,Chung YE,Park MS,Kim MJ,Kim KW,Kim SK

更新日期：2011-07-01 00:00:00

abstract：OBJECTIVE:To evaluate the impact of energy and access methods on extrahepatic tumor spreading and the ablation zone in an ex vivo subcapsular tumor mimic model with a risk of extrahepatic tumor spreading. MATERIALS AND METHODS:Forty-two tumor-mimics were created in bovine liver blocks by injecting a mixture of iodine ...

journal_title：Korean journal of radiology

authors： Kim JS,Ko Y,Kwon H,Kim M,Lee JK

更新日期：2019-04-01 00:00:00

abstract：:Holoprosencephaly (HPE) and polycystic kidney disease (PKD) are genetically heterogeneous anomalies which can make up part of various syndromes or chromosomal anomalies. Due to the rapid lethality prognosis, early and precise prenatal diagnosis would be of great value. This case report describes extensive PKD involvem...

journal_title：Korean journal of radiology

authors： Koplay M,Onbas O,Alper F,Borekci B

更新日期：2009-05-01 00:00:00

abstract：OBJECTIVE:The purpose of this study was to evaluate the effects of localized brain cooling on blood-brain barrier (BBB) permeability following transient middle cerebral artery occlusion (tMCAO) in rats, by using dynamic contrast-enhanced (DCE)-MRI. MATERIALS AND METHODS:Thirty rats were divided into 3 groups of 10 rat...

journal_title：Korean journal of radiology

authors： Kim ES,Lee SK,Kwon MJ,Lee PH,Ju YS,Yoon DY,Kim HJ,Lee KS

更新日期：2016-09-01 00:00:00

abstract：:The cystic lesions of the gastrointestinal (GI) tract demonstrate the various pathologic findings. Some lesions may present a diagnostic challenge because of non-specific imaging features; however, other lesions are easily diagnosed using characteristic radiologic features and anatomic locations. Cystic masses from th...

journal_title：Korean journal of radiology

authors： Lee J,Park CM,Kim KA,Lee CH,Choi JW,Shin BK,Lee SJ,Choi D,Jang KT

更新日期：2010-07-01 00:00:00

abstract：OBJECTIVE:To record the MR imaging features of primary central nervous system lymphoma (PCNSL) and compare these features in monofocal and multifocal disease. MATERIALS AND METHODS:Twenty-one cases of monofocal disease were compared to five cases of multifocal disease. All patients were examined by non-enhanced and co...

journal_title：Korean journal of radiology

authors： Zhang D,Hu LB,Henning TD,Ravarani EM,Zou LG,Feng XY,Wang WX,Wen L

更新日期：2010-05-01 00:00:00

abstract：:The aim of this systematic review was to describe the characteristics of prostate-specific membrane antigen (PSMA)-targeting PET and their clinical applications in prostate cancer patients. There have been major strides in the design, synthesis of PSMA-targeting PET tracers over the past several years. PSMA-targeting ...

journal_title：Korean journal of radiology

authors： Oh SW,Cheon GJ

更新日期：2018-09-01 00:00:00

abstract：:The guideline for the management of hepatocellular carcinoma (HCC) was first developed in 2003 and revised in 2009 by the Korean Liver Cancer Study Group and the National Cancer Center, Korea. Since then, many studies on HCC have been carried out in Korea and other countries. In particular, a substantial body of knowl...

journal_title：Korean journal of radiology

authors： Korean Liver Cancer Study Group (KLCSG).,National Cancer Center, Korea (NCC).

更新日期：2015-05-01 00:00:00

abstract：OBJECTIVE:To evaluate the three-phase helical CT features of early hepatocellular carcinomas, based on the new Japanese classification. MATERIALS AND METHODS:Over the course of an eight-year period, we collected 16 pathologically proven early hepatocellular carcinomas from 16 patients having undergone a three-phase he...

journal_title：Korean journal of radiology

authors： Lee J,Lee WJ,Lim HK,Lim JH,Choi N,Park MH,Kim SW,Park CK

更新日期：2008-07-01 00:00:00

abstract：:Adenosine is a short-acting coronary vasodilator, and it is widely used during pharmacological stress myocardial perfusion imaging. It has a well-established safety profile, and most of its side effects are known to be mild and transient. Until now, coronary vasospasm has been rarely reported as a side effect of adeno...

journal_title：Korean journal of radiology

authors： Nam JG,Choi SH,Kang BS,Bang MS,Kwon WJ

更新日期：2015-05-01 00:00:00