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Lee JH, Yun JY, Gregory A, Hogarth P, Hayflick SJ. Brain MRI Pattern Recognition in Neurodegeneration With Brain Iron Accumulation. Front Neurol 2020; 11:1024. [PMID: 33013674 PMCID: PMC7511538 DOI: 10.3389/fneur.2020.01024] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 08/05/2020] [Indexed: 01/08/2023] Open
Abstract
Most neurodegeneration with brain iron accumulation (NBIA) disorders can be distinguished by identifying characteristic changes on magnetic resonance imaging (MRI) in combination with clinical findings. However, a significant number of patients with an NBIA disorder confirmed by genetic testing have MRI features that are atypical for their specific disease. The appearance of specific MRI patterns depends on the stage of the disease and the patient's age at evaluation. MRI interpretation can be challenging because of heterogeneously acquired MRI datasets, individual interpreter bias, and lack of quantitative data. Therefore, optimal acquisition and interpretation of MRI data are needed to better define MRI phenotypes in NBIA disorders. The stepwise approach outlined here may help to identify NBIA disorders and delineate the natural course of MRI-identified changes.
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Kim M, Oh SH, Cho JW, Lee JH. Spinocerebellar Ataxia 13 Presenting with Pure Cerebellar Syndrome in a Korean Family. J Mov Disord 2020; 13:244-246. [PMID: 32894899 PMCID: PMC7502298 DOI: 10.14802/jmd.20064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/21/2020] [Indexed: 11/24/2022] Open
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Lee GR, Lee JH. The impact of the policy of expanding coverage for 4 major diseases on out-of-pocket payments. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.1215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
In South Korea, Cancers, cardiac disease, cerebrovascular diseases and rare incurable disease cause high medical expenses which are putting a heavy burden on the household economy. They are called '4 Major Severe Diseases'. The government has established the plan of Expanding Coverage for Four Major Severe Diseases. The Policy of Expanding Coverage for the 4 Major Severe Diseases is to apply the necessary medical services including coverage for uncovered services to national health insurance payments in stages. This study aims to evaluate the effects of the policy implemented from 2013 to 2015 by comparing the changes in the out-of-pocket payments before and after the policy. Using the data from the Korea Health Panel(2012, 2016), the policy effect was evaluated by the Difference-In-Difference analysis. A total of 4,686 patients (2,343 in 2012 and 2,343 in 2016) were included, who are enrolled in National Health Insurance, and have at least one chronic disease. People who are under 20 years old were excluded. In addition, severity of disease was adjusted by CCI(Charson's comorbidity index). Compared to before the policy was implemented, the Out-of-pocket payments significantly decreased. In addition, there were significant differences in gender, types of health care system, disabled, economic activity, income level, and CCI. According to previous studies, the policy of Expanding health insurance coverage since 2005 has been criticized for its low effectiveness. However, It is revealed that the Policy of Expanding Coverage for 4 Major Severe Diseases has an effect in this study. Given that the policy needs time to work, this study showed the effect of the policy more comprehensively compared to previous studies evaluating the effectiveness for just one year.
Key messages
Due to the Policy of Expanding Coverage for 4 Major Severe Diseases, the out-of-pocket health expenditure were reduced in the policy group. Given that the policy needs time to work, this study has shown more comprehensive results than previous studies that evaluated the effect of policy carried out over a short period.
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Chung SR, Lee JH, Yoon RK, Sung TY, Song DE, Pfeuffer J, Kim IS. Differentiation of follicular carcinomas from adenomas using histogram obtained from diffusion-weighted MRI. Clin Radiol 2020; 75:878.e13-878.e19. [PMID: 32838926 DOI: 10.1016/j.crad.2020.07.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 07/06/2020] [Indexed: 01/21/2023]
Abstract
AIM To evaluate the role of histogram analysis of apparent diffusion coefficient (ADC) maps from diffusion-weighted imaging (DWI) in the differentiation of follicular thyroid carcinoma (FTC) from follicular adenoma (FA) in nodules indeterminate on ultrasound-guided core needle biopsy (USCNB). MATERIALS AND METHODS This study was performed with institutional review board approval. Seventeen patients who were planned to undergo diagnostic lobectomy for an indeterminate thyroid nodule (atypical of unknown significance/follicular lesion of undetermined significance [AUS/FLUS] or suspicious for follicular neoplasm/follicular neoplasm [SFN]) on USCNB were enrolled prospectively. All patients underwent DWI on the day before surgery. Histogram parameters were derived from ADC values obtained from the whole extent of the tumours. The parameters were compared with the final diagnosis based on histopathological examination after surgery. The accuracy of the parameters in differentiating FTC from FA was evaluated using receiver operating characteristic (ROC) curve analysis. RESULTS Twelve patients were confirmed as having FA and five patients as having FTC. Histogram parameters including the 10th (ADC10), 25th (ADC25), and 50th (ADC50) percentiles of the ADC values were significantly lower in FA than in FTC (p < 0.05, all). ROC curve analysis revealed that ADC25 resulted in the highest AUC (0.867; confidence interval, 0.616-0.980), with a cut-off value of 0.352×10-3 mm2/s. CONCLUSION Histogram parameters from ADC maps could differentiate FTC from FA effectively in indeterminate nodules on USCNB, with ADC25 being the most promising parameter.
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Kim D, Choi YJ, Song Y, Chung SR, Baek JH, Lee JH. Thin-Section MR Imaging for Carotid Cavernous Fistula. AJNR Am J Neuroradiol 2020; 41:1599-1605. [PMID: 32819900 DOI: 10.3174/ajnr.a6757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/26/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Carotid-cavernous fistulas are abnormal vascular shunts that can cause various neurologic or orbital symptoms. The purpose of this retrospective study was to evaluate the diagnostic performance of thin-section MR imaging for carotid cavernous fistula in patients with clinically suspected carotid cavernous fistula, and to identify possible imaging predictors of carotid cavernous fistula. MATERIALS AND METHODS A total of 98 patients who were clinically suspected of having carotid cavernous fistula (according to their symptoms and physical examinations) between January 2006 and September 2018 were included in this study. The patients underwent pretreatment thin-section MR imaging and DSA. Thin-section MR imaging consisted of 2D coronal T1- and T2WI with 3-mm thickness and 3D contrast-enhanced T1WI with 0.6 mm thickness. The diagnostic performance of thin-section MR imaging for carotid cavernous fistula was evaluated with the reference standard of DSA. Univariate logistic regression analysis was performed to determine possible imaging predictors of carotid cavernous fistula. RESULTS Among the 98 patients, DSA confirmed 38 as having carotid cavernous fistula. The overall accuracy, sensitivity, and specificity of thin-section MR imaging were 88.8%, 97.4%, and 83.3%, respectively. Possible imaging predictors on thin-section MR imaging included abnormal contour of the cavernous sinus (OR: 21.7), internal signal void of the cavernous sinus (OR: 15.3), prominent venous drainage flow (OR: 54.0), and orbital/periorbital soft tissue swelling (OR: 40.4). CONCLUSIONS Thin-section MR imaging provides high diagnostic performance and possible imaging predictors of carotid cavernous fistula in patients with clinically suspected carotid cavernous fistula. Thin-section MR imaging protocols could help decide appropriate management plans for patients with clinically suspected carotid cavernous fistula.
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Lee MK, Lee JH, Kim JH, Kim H, Joo L, Kim M, Cho SJ, Suh CH, Chung SR, Choi YJ, Baek JH. Diagnostic Accuracy of MRI-Based Morphometric Parameters for Detecting Olfactory Nerve Dysfunction. AJNR Am J Neuroradiol 2020; 41:1698-1702. [PMID: 32763901 DOI: 10.3174/ajnr.a6697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 06/09/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND PURPOSE Although olfactory dysfunction is a common cranial nerve disorder, there are no simple objective morphometric criteria to assess olfactory dysfunction. The aim of this study was to evaluate the diagnostic performance of MR imaging morphometric parameters for detecting olfactory dysfunction. MATERIALS AND METHODS This prospective study enrolled patients from those presenting with olfactory symptoms who underwent both an olfactory function test and MR imaging. Controls without olfactory dysfunction were recruited during the preoperative work-up for pituitary adenoma. Two independent neuroradiologists measured the olfactory bulb in 3D and assessed olfactory bulb concavity on MR imaging while blinded to the clinical data. Diagnostic performance was assessed using receiver operating characteristic curve analysis. RESULTS Sixty-four patients and 34 controls were enrolled. The patients were significantly older than the controls (mean age, 57.8 ± 11.9 years versus 47.1 ± 12.1 years; P < .001). Before age adjustment, the olfactory bulb height was the only olfactory bulb parameter showing a significant difference between patients and controls (1.6 ± 0.3 mm versus 2.0 ± 0.3 mm, P < .001). After age adjustment, all parameters and olfactory bulb concavity showed significant intergroup differences, with the olfactory bulb height having the highest area under the curve (0.85). Olfactory bulb height was confirmed to be the only significant parameter showing a difference in the detection of olfactory dysfunction in 22 pairs after matching for age and sex (area under the curve = 0.87, P < .001). Intraclass correlation coefficients revealed moderate-to-excellent degrees of inter- and intrareader agreement. CONCLUSIONS MR imaging morphometric analysis can differentiate patients with olfactory dysfunction, with the olfactory bulb height having the highest diagnostic performance for detecting olfactory dysfunction irrespective of age.
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Lee JH, Yoon CJ, Choi WS, Lee CH. Benign postoperative hepaticojejunostomy stricture: percutaneous recanalisation using the reverse end of a microwire. Clin Radiol 2020; 75:879.e1-879.e6. [PMID: 32727657 DOI: 10.1016/j.crad.2020.06.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 06/23/2020] [Indexed: 11/26/2022]
Abstract
AIM To evaluate the technical feasibility and safety of percutaneous recanalisation of benign postoperative hepaticojejunostomy strictures using the reverse end of a microwire. MATERIALS AND METHODS Twenty-one patients with benign postoperative hepaticojejunostomy strictures that had failed to recanalise following management with conventional percutaneous techniques from January 2012 to March 2019 were included in the study. The stricture was punctured by the reverse end of a microwire. Subsequently, serial balloon dilatation and covered stent placement was performed. Technical as well as clinical success, complications, and patency of the hepaticojejunostomy were evaluated. RESULTS Technical success was achieved in 19 of 21 (90.5%) patients. The mean number of treatment sessions was 1.2 (range, 1-2). The obstructive symptoms were resolved within 3 days after the procedure in 19 patients (100%). There were no major complications. The 1-year and 3-year patency rates were 76.9% and 61.5%, respectively. CONCLUSION Percutaneous recanalisation using the reverse end of a microwire is technically feasible and safe in the treatment of benign postoperative hepaticojejunostomy strictures. This technique is useful when the conventional percutaneous technique cannot be used to cross the stricture.
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Kim MH, Adriani O, Berti E, Bonechi L, D'Alessandro R, Goto Y, Hong B, Itow Y, Kasahara K, Lee JH, Ljubicic T, Makino Y, Menjo H, Nakagawa I, Ogawa A, Park JS, Sako T, Sakurai N, Sato K, Seidl R, Tanida K, Torii S, Tricomi A, Ueno M, Zhou QD. Transverse Single-Spin Asymmetry for Very Forward Neutral Pion Production in Polarized p+p Collisions at sqrt[s]=510 GeV. PHYSICAL REVIEW LETTERS 2020; 124:252501. [PMID: 32639790 DOI: 10.1103/physrevlett.124.252501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
Transverse single-spin asymmetries of very forward neutral pions generated in polarized p+p collisions allow us to understand the production mechanism in terms of perturbative and nonperturbative strong interactions. During 2017, the RHICf Collaboration installed an electromagnetic calorimeter in the zero-degree region of the STAR detector at the Relativistic Heavy Ion Collider (RHIC) and measured neutral pions produced at pseudorapidity larger than 6 in polarized p+p collisions at sqrt[s]=510 GeV. The large nonzero asymmetries increasing both in longitudinal momentum fraction x_{F} and transverse momentum p_{T} have been observed at low transverse momentum p_{T}<1 GeV/c for the first time, at this collision energy. The asymmetries show an approximate x_{F} scaling in the p_{T} region where nonperturbative processes are expected to dominate. A non-negligible contribution from soft processes may be necessary to explain the nonzero neutral pion asymmetries.
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Jeon YJ, Han YJ, Choi MH, Lee JS, Lee JH, Jo SH, Kim SH. Mental health states and influencing factors of risky and problem drinking in South Korean female adolescents. Public Health 2020; 185:61-69. [PMID: 32570147 DOI: 10.1016/j.puhe.2020.04.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 04/12/2020] [Accepted: 04/21/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Alcohol is one of the most used and abused psychoactive substances by adolescents. We investigated influencing factors of risky and problem drinking in Korean female adolescents. STUDY DESIGN The study design used is a cross-sectional modeling. METHODS We used data from the 13th Korean Youth Risk Behavior Web-based Survey (KYRBS) conducted in 2017. KYRBS data were obtained from a stratified, multistage, clustered sample. Risky drinking was binge drinking and problem drinking was drinking with several conflicts association with alcohol consumption. RESULTS Among 62,276 participants, the rates of current, risky, and problem drinking among all participants were 16.1%, 8.3%, and 6.1%, respectively. Although all of these rates were higher in males, risky and problem drinking rates among current female drinkers were higher than those of males (55.4 vs 48.5%, 38.9 vs 37.2%, respectively). Problem drinking was most strongly associated with risky drinking (adjusted odds ratio: 17.53 [95% confidence interval: 14.63-21.00]), similarly, risky drinking was most strongly associated with problem drinking in female current drinkers (17.76 [14.84-21.27]). Current smoking was the second strongest risk factor for risky and problem drinking in females (5.22 [3.92-6.95] and 2.93 [2.21-3.89], respectively). CONCLUSION Many female adolescents in Korea drink alcohol in an unhealthy manner. The female risky and problem drinking rates among current drinkers were higher than those of males. Risky drinking and problem drinking was most significant influencing factor among females, reciprocally. Public education on abstinence in female adolescents is warranted.
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Ock HS, Hwang SW, Lee HJ, Kim CH, Kim SH, Kim TH, Lee JH, Lee JS. The effects of hidden female smokers on the association between smoking and chronic obstructive pulmonary disease in Korean adults. Pulmonology 2020; 27:286-295. [PMID: 32474057 DOI: 10.1016/j.pulmoe.2020.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/28/2020] [Accepted: 04/30/2020] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVE Smoking is an important causative factor of chronic obstructive pulmonary disease (COPD), and females are considered more susceptible to the effects of smoking than males. However, in previous Korean studies, the effects of sex differences on the association between smoking and COPD have been controversial. In this study, the effects of sex differences on the association between smoking and COPD and the effects of female hidden smokers on that association in Korean adults were investigated. METHODS Data were acquired from the Korea National Health and Nutrition Examination Surveys (KNHANES). RESULTS The multivariate logistic regression analysis showed that self-reported smoking status for ex-smoker and current smoker correlated with COPD (odds ratio, OR: 1.67 and OR: 2.41, respectively). Self-reported smoking status for ex-smoker and current smoker correlated with COPD in men (OR: 1.61, OR: 2.43, respectively). Female self-reported current smoking status correlated with COPD (OR: 2.52), but female ex-smoker status was not significantly correlated with COPD. The ratios of cotinine-verified to self-reported smoking rates were 1.95 for women and 1.07 for men. CONCLUSION The results of this study were that sex differences might affect the association between COPD and smoking and that female hidden smoking might affect the association between smoking and COPD in Korean adults.
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Adam J, Adamczyk L, Adams JR, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Anderson DM, Aparin A, Aschenauer EC, Ashraf MU, Atetalla FG, Attri A, Averichev GS, Bairathi V, Barish K, Behera A, Bellwied R, Bhasin A, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Brandenburg JD, Brandin AV, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Chakaberia I, Chaloupka P, Chan BK, Chang FH, Chang Z, Chankova-Bunzarova N, Chatterjee A, Chen D, Chen JH, Chen X, Chen Z, Cheng J, Cherney M, Chevalier M, Choudhury S, Christie W, Crawford HJ, Csanád M, Daugherity M, Dedovich TG, Deppner IM, Derevschikov AA, Didenko L, Dong X, Drachenberg JL, Dunlop JC, Edmonds T, Elsey N, Engelage J, Eppley G, Esha R, Esumi S, Evdokimov O, Ewigleben J, Eyser O, Fatemi R, Fazio S, Federic P, Fedorisin J, Feng CJ, Feng Y, Filip P, Finch E, Fisyak Y, Francisco A, Fulek L, Gagliardi CA, Galatyuk T, Geurts F, Gibson A, Gopal K, Grosnick D, Guryn W, Hamad AI, Hamed A, Harris JW, He W, He X, Heppelmann S, Heppelmann S, Herrmann N, Hoffman E, Holub L, Hong Y, Horvat S, Hu Y, Huang HZ, Huang SL, Huang T, Huang X, Humanic TJ, Huo P, Igo G, Isenhower D, Jacobs WW, Jena C, Jentsch A, Ji Y, Jia J, Jiang K, Jowzaee S, Ju X, Judd EG, Kabana S, Kabir ML, Kagamaster S, Kalinkin D, Kang K, Kapukchyan D, Kauder K, Ke HW, Keane D, Kechechyan A, Kelsey M, Khyzhniak YV, Kikoła DP, Kim C, Kimelman B, Kincses D, Kinghorn TA, Kisel I, Kiselev A, Kisiel A, Kocan M, Kochenda L, Kosarzewski LK, Kramarik L, Kravtsov P, Krueger K, Kulathunga Mudiyanselage N, Kumar L, Kunnawalkam Elayavalli R, Kwasizur JH, Lacey R, Lan S, Landgraf JM, Lauret J, Lebedev A, Lednicky R, Lee JH, Leung YH, Li C, Li W, Li W, Li X, Li Y, Liang Y, Licenik R, Lin T, Lin Y, Lisa MA, Liu F, Liu H, Liu P, Liu P, Liu T, Liu X, Liu Y, Liu Z, Ljubicic T, Llope WJ, Longacre RS, Lukow NS, Luo S, Luo X, Ma GL, Ma L, Ma R, Ma YG, Magdy N, Majka R, Mallick D, Margetis S, Markert C, Matis HS, Mazer JA, Minaev NG, Mioduszewski S, Mohanty B, Mooney I, Moravcova Z, Morozov DA, Nagy M, Nam JD, Nasim M, Nayak K, Neff D, Nelson JM, Nemes DB, Nie M, Nigmatkulov G, Niida T, Nogach LV, Nonaka T, Odyniec G, Ogawa A, Oh S, Okorokov VA, Page BS, Pak R, Pandav A, Panebratsev Y, Pawlik B, Pawlowska D, Pei H, Perkins C, Pinsky L, Pintér RL, Pluta J, Porter J, Posik M, Pruthi NK, Przybycien M, Putschke J, Qiu H, Quintero A, Radhakrishnan SK, Ramachandran S, Ray RL, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ruan L, Rusnak J, Sahoo NR, Sako H, Salur S, Sandweiss J, Sato S, Schmidke WB, Schmitz N, Schweid BR, Seck F, Seger J, Sergeeva M, Seto R, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Shen F, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Sikora R, Simko M, Singh J, Singha S, Smirnov N, Solyst W, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stefaniak M, Stewart DJ, Strikhanov M, Stringfellow B, Suaide AAP, Sumbera M, Summa B, Sun XM, Sun Y, Sun Y, Surrow B, Svirida DN, Szymanski P, Tang AH, Tang Z, Taranenko A, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Tomkiel CA, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Tsai OD, Tu Z, Ullrich T, Underwood DG, Upsal I, Van Buren G, Vanek J, Vasiliev AN, Vassiliev I, Videbæk F, Vokal S, Voloshin SA, Wang F, Wang G, Wang JS, Wang P, Wang Y, Wang Y, Wang Z, Webb JC, Weidenkaff PC, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu Y, Xiao ZG, Xie G, Xie W, Xu H, Xu N, Xu QH, Xu YF, Xu Y, Xu Z, Xu Z, Yang C, Yang Q, Yang S, Yang Y, Yang Z, Ye Z, Ye Z, Yi L, Yip K, Zbroszczyk H, Zha W, Zhang D, Zhang S, Zhang S, Zhang XP, Zhang Y, Zhang ZJ, Zhang Z, Zhao J, Zhong C, Zhou C, Zhu X, Zhu Z, Zurek M, Zyzak M. First Measurement of Λ_{c} Baryon Production in Au+Au Collisions at sqrt[s_{NN}]=200 GeV. PHYSICAL REVIEW LETTERS 2020; 124:172301. [PMID: 32412276 DOI: 10.1103/physrevlett.124.172301] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 02/24/2020] [Accepted: 03/27/2020] [Indexed: 06/11/2023]
Abstract
We report on the first measurement of the charmed baryon Λ_{c}^{±} production at midrapidity (|y|<1) in Au+Au collisions at sqrt[s_{NN}]=200 GeV collected by the STAR experiment at the Relativistic Heavy Ion Collider. The Λ_{c}/D^{0} [denoting (Λ_{c}^{+}+Λ_{c}^{-})/(D^{0}+D[over ¯]^{0})] yield ratio is measured to be 1.08±0.16 (stat)±0.26 (sys) in the 0%-20% most central Au+Au collisions for the transverse momentum (p_{T}) range 3<p_{T}<6 GeV/c. This is significantly larger than the pythia model calculations for p+p collisions. The measured Λ_{c}/D^{0} ratio, as a function of p_{T} and collision centrality, is comparable to the baryon-to-meson ratios for light and strange hadrons in Au+Au collisions. Model calculations including coalescence hadronization for charmed baryon and meson formation reproduce the features of our measured Λ_{c}/D^{0} ratio.
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Lee JH, Paik HD. Anticancer and immunomodulatory activity of egg proteins and peptides: a review. Poult Sci 2020; 98:6505-6516. [PMID: 31237321 PMCID: PMC8913999 DOI: 10.3382/ps/pez381] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 06/11/2019] [Indexed: 12/15/2022] Open
Abstract
Eggs are widely recognized as a highly nutritious food source that offer specific health benefits for humans. Eggs contain all of the proteins, lipids, vitamins, minerals, and growth factors necessary for embryonic development. In particular, egg white and yolk proteins are considered functional food substances because they possess biological activities such as antimicrobial, antioxidant, metal-chelating, antihypertensive, anticancer, and immunomodulatory activities. Peptides produced via processes such as enzymatic hydrolysis, fermentation by microorganisms, and some chemical and physical treatments of egg proteins have been shown to enhance the functional properties and solubility of these peptides. Peptide activity is strongly related to amino acid sequence, composition, and length. At present, cancer remains among the leading causes of mortality worldwide, and therefore research aimed at developing new treatments for cancer immunotherapy is of great interest. The present review focuses primarily on the anticancer and immunomodulatory activities of egg proteins and their peptides and provides some insight into their underlying mechanisms of action. A number of egg proteins and peptides have been reported to induce apoptosis in cancer cells, protect against DNA damage, decrease the invasion ability of cancer cells, and exhibit cytotoxic and antimutagenic activity in various cancer cell lines. Furthermore, egg proteins and peptides can stimulate or suppress pro- or anti-inflammatory cytokines, as well as affect the production of inflammatory mediators in a variety of cell lines. In addition, the composition of eggs and the processes of egg proteins and peptides production will be discussed.
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Cho SJ, Suh CH, Baek JH, Chung SR, Choi YJ, Lee JH. Diagnostic performance of MRI to detect metastatic cervical lymph nodes in patients with thyroid cancer: a systematic review and meta-analysis. Clin Radiol 2020; 75:562.e1-562.e10. [PMID: 32303337 DOI: 10.1016/j.crad.2020.03.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 03/11/2020] [Indexed: 02/02/2023]
Abstract
AIM To evaluate the diagnostic performance of magnetic resonance imaging (MRI) in the diagnosis of metastatic cervical lymph nodes. MATERIALS AND METHODS Ovid-MEDLINE and EMBASE databases were searched up until 12 June 2018. Eleven articles were included in the qualitative systematic review and nine of the 11 in the quantitative analysis. Two radiologists independently performed data extraction and methodological quality assessment using the Quality Assessment of Diagnostic Accuracy Studies-2 tool. A qualitative systematic review and quantitative analysis were performed, followed by a meta-regression analysis to determine factors causing heterogeneity. RESULTS The pooled sensitivity and specificity in the diagnosis of metastatic cervical lymph nodes were 80% (95% confidence interval [CI]: 68-88%) and 85% (95% CI: 63-95%), respectively. The sensitivity and false-positive rate (correlation coefficient, 0.655) showed a positive correlation due to a threshold effect, which was responsible for heterogeneity across the studies, as indicated by a Q-test (p<0.01) and Higgins I2 statistic (sensitivity, I2=90.11%; specificity, I2=92.49%). In the meta-regression analysis, fat-suppressed imaging, and the analysis method were significant factors influencing the heterogeneity in diagnostic performance. CONCLUSIONS MRI shows moderate diagnostic performance in the diagnosis of metastatic lymph nodes in patients with thyroid cancer in the neck. MRI may be an optional or complementary imaging method to ultrasound or computed tomography (CT) in thyroid cancer patients.
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Lee SH, Park JS, Kim SY, Kim DS, Kim YW, Chung MP, Uh ST, Park CS, Park SW, Jeong SH, Park YB, Lee HL, Shin JW, Lee JH, Jegal Y, Lee HK, Kim YH, Song JW, Park MS. Clinical features and prognosis of patients with idiopathic pulmonary fibrosis and chronic obstructive pulmonary disease. Int J Tuberc Lung Dis 2020; 23:678-684. [PMID: 31315699 DOI: 10.5588/ijtld.18.0194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
<sec> <title>BACKGROUND</title> Idiopathic pulmonary fibrosis (IPF) and chronic obstructive pulmonary disease (COPD) share common risk factors. They could therefore be expressed in a single patient. However, the prevalence, clinical characteristics and prognosis of individuals with comorbid IPF and COPD are not known. </sec> <sec> <title>METHOD</title> From 2003 to 2007, the Korean Interstitial Lung Disease Study Group created a register for idiopathic interstitial pneumonia using 2002 ATS/ERS (American Thoracic Society/European Respiratory Society) criteria. Of the 1546 IPF patients assessed, 143 had decreased lung function consistent with COPD (IPF-COPD). COPD was diagnosed based on age (≥40 years) and pulmonary function (forced expiratory volume in 1 sec [FEV1]/forced vital capacity [FVC] ratio < 0.7). </sec> <sec> <title>RESULTS</title> The median age of the IPF-COPD group was 71.0 years (interquartile range 66.0-76.0); most patients were male (88.1%). FVC (%) was significantly higher in the IPF-COPD group; however, FEV1 (%) was significantly lower in the IPF-COPD group (P < 0.001). Diffusing capacity of the lung for carbon monoxide (DLCO) was not significantly different between the two groups. In survival analysis, age and FVC (%), but not COPD, were significantly associated with prognosis (respectively P = 0.003, 0.001 and 0.401). COPD severity was also not related to prognosis (P = 0.935). </sec> <sec> <title>CONCLUSION</title> The prevalence of IPF-COPD was estimated to be ∼9.2% among all IPF patients; prognosis of patients with IPF-COPD was not worse than those with IPF alone. </sec>.
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Lee JH, Park JS. Antibacterial effect of traditional food ingredients for healthcare on Helicobacter pylori. Technol Health Care 2020; 27:509-518. [PMID: 31156188 DOI: 10.3233/thc-191735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND The development of antibacterial materials using various traditional food ingredients will be valuable to inhibit Helicobacter pylori in the future. The vegetables and herbs used in this study were food ingredients that normal people eat every day. This paper can be used as a resource for healthcare. OBJECTIVE This paper presents the design to investigate the antibacterial effect of 20 vegetables and herbs used as traditional food ingredients on H. pylori. METHODS The antibacterial effect on H. pylori was studied using the disk diffusion test on the activity of H. pylori. For the control group, 50 mg/ml of Metronidazol, a widely used antibiotic, was used. In particular, four herbs of Artemisia argyi, Scutellaria baicalensis, Annona muricata and Agrimonia pilosa were selected to measure the microbial viability assay, MTT assay, and antioxidant activity owing to the DPPH free radical elimination ability. RESULTS The measurement results showed that Annona muricata and Agrimonia pilosa had an antibacterial effect on H. pylori and all four herbs were safe in terms of cytotoxicity. The measurement results on the antioxidant activity showed that Scutellaria baicalensia was the best. Annona muricata and Agrimonia pilosa also had an antioxidant activity. CONCLUSIONS The study results on antibacterial effect of traditional food ingredients of vegetables and herbs on H. pylori showed that Scutellaria baicalensis, Annona muricata and Agrimonia pilosa can be considered as healthcare functional materials through the inhibition of H. Pylori.
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Kong SH, Kim JH, Park YJ, Lee JH, Hong AR, Shin CS, Cho NH. Low free T3 to free T4 ratio was associated with low muscle mass and impaired physical performance in community-dwelling aged population. Osteoporos Int 2020; 31:525-531. [PMID: 31784788 DOI: 10.1007/s00198-019-05137-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 08/16/2019] [Indexed: 10/25/2022]
Abstract
UNLABELLED In aged population, the association of thyroid hormones on physical performance, especially within their normal range, has yet to be elucidated. In this study, individuals with low serum free T3/free T4 were likely to have low muscle mass and impaired physical performance. PURPOSE We aimed to evaluate the associations of muscle mass, strength, and physical performance with thyroid hormone in an aged euthyroid population from a community-based cohort. METHODS We examined 918 men aged over 60 years and 1215 postmenopausal women from the Ansung cohort study. Appendicular skeletal muscle mass divided by square of height (ASM/ht2) was used as the muscle mass index. Hand grip strength was measured using a hydraulic dynamometer. Physical performance was assessed using the short physical performance battery (SPPB). RESULTS Participants with higher tertiles of free T3 and free T3/free T4 were younger and had higher ASM/ht2, stronger hand grip strength, and higher SPPB scores than those in the lower tertiles. In adjusted models, men within higher tertiles of free T3 had higher ASM/ht2 compared with those within lower tertiles (p = 0.033), whereas subjects with higher tertiles of free T4 had lower ASM/ht2 compared with those within lower tertiles (p = 0.043). Subjects within higher tertiles of free T3/free T4 had higher ASM/ht2 (p < 0.001) and better physical performance (p = 0.048) than those within lower tertiles after adjustments. However, free T3, free T4, or free T3/free T4 was not related to hand grip strength after adjustment for covariates. CONCLUSION Our results thus indicate that in an aged euthyroid population, low serum free T3/free T4 was a better index for low muscle mass and impaired physical performance than serum free T3 or free T4 alone.
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Munz J, Xiong Y, Kim JYH, Sung YJ, Seo S, Hong RH, Kariyawasam T, Shelley N, Lee J, Sim SJ, Jin E, Lee JH. Arginine-fed cultures generates triacylglycerol by triggering nitrogen starvation responses during robust growth in Chlamydomonas. ALGAL RES 2020. [DOI: 10.1016/j.algal.2019.101782] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Moon HG, Cao Y, Yang J, Lee JH, Choi HS, Jin Y. Correction: Lung epithelial cell-derived extracellular vesicles activate macrophage-mediated inflammatory responses via ROCK1 pathway. Cell Death Dis 2020; 11:116. [PMID: 32051400 PMCID: PMC7015944 DOI: 10.1038/s41419-020-2310-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Kim M, Han KD, Lee JH. Bodyweight variability and the risk of psoriasis: a nationwide population-based cohort study. J Eur Acad Dermatol Venereol 2020; 34:1019-1025. [PMID: 31747463 DOI: 10.1111/jdv.16099] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 11/12/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Bodyweight variability has been suggested to exacerbate chronic inflammation and increase the risk of adverse cardiovascular events. Little is known whether high variability in bodyweight affects the development of psoriasis. OBJECTIVE To investigate the association between weight variability and the risk of psoriasis. METHODS Using a representative cohort enrolled in the national health examination programme conducted by the Korean National Health Insurance Service, 8 016 907 people who were free of psoriasis and who underwent at least three health examinations between 2010 and 2015 were followed until the end of 2017. We classified participants numerically according to the variability indices and defined high variability (Q4) as the highest quartile of variability. Cox proportional hazard regression models were used to evaluate the risk of psoriasis according to the quartile groups of bodyweight variability. RESULTS In total, 187 128 (2.33%) participants developed psoriasis during a median follow-up of 3.4 years. There was an association between baseline body mass index and the risk of psoriasis. In the multivariable model adjusting for confounding variables, an incrementally increased risk of psoriasis was observed for higher quartiles compared with the lowest quartile group (Q1). The hazard ratio (HR) and 95% confidence intervals comparing the highest (Q4) and lowest quartiles (Q1) of bodyweight variability were 1.06 (1.05-1.07) for psoriasis. CONCLUSION High bodyweight variability was significantly associated with an increased risk of psoriasis. These findings imply that clinicians should encourage patients to maintain proper bodyweight to help prevent psoriasis.
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Yansane A, Lee JH, Hebballi N, Obadan-Udoh E, White J, Walji M, Easterday C, Rindal B, Worley D, Kalenderian E. Assessing the Patient Safety Culture in Dentistry. JDR Clin Trans Res 2020; 5:399-408. [PMID: 31923373 DOI: 10.1177/2380084419897614] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVES Medical errors are among the leading causes of death within the United States. Studies have shown that patients can be harmed while receiving care, sometimes resulting in permanent injury or, in extreme cases, death. To reduce the risk of patient safety incidents, it is imperative that a robust culture of safety be established. The primary objective of this study was to evaluate the patient safety culture among providers at 4 US dental institutions, comparing the results with their medical counterparts in 2016. METHODS This cross-sectional study uses the Medical Office Survey on Patient Safety Culture that was modified for dentistry and administered at 4 US dental institutions during the 2016 calendar year. All dental team members were invited to complete electronic or paper-based versions of the questionnaire. RESULTS Among 1,615 invited participants, 656 providers responded (rate, 40.6%). Medical institutions outperformed the dental institutions on 9 of the 10 safety culture dimensions, 6 of the 6 overall quality items, and 8 of the 9 patient safety and quality issues. The surveyed dental institutions reported the strongest average percentage positive scores in organizational learning (85%) and teamwork (79%). CONCLUSION These findings suggest that the patient safety culture progressed over time. However, there is still heterogeneity within safety culture among academic dental, private (nonacademic), and medical clinics. KNOWLEDGE TRANSFER STATEMENT Patient safety is the first dimension of quality improvement. Administering the Medical Office Survey on Patient Safety Culture within dental clinics represents a key measure to understand where improvements can be made with respect to patient care safety.
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Joo S, Wang MH, Lui G, Lee J, Barnas A, Kim E, Sudek S, Worden AZ, Lee JH. Correction to: Common ancestry of heterodimerizing TALE homeobox transcription factors across Metazoa and Archaeplastida. BMC Biol 2020; 18:4. [PMID: 31918709 PMCID: PMC6953145 DOI: 10.1186/s12915-020-0737-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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Price DC, Goodenough UW, Roth R, Lee JH, Kariyawasam T, Mutwil M, Ferrari C, Facchinelli F, Ball SG, Cenci U, Chan CX, Wagner NE, Yoon HS, Weber APM, Bhattacharya D. Analysis of an improved Cyanophora paradoxa genome assembly. DNA Res 2020; 26:287-299. [PMID: 31098614 PMCID: PMC6704402 DOI: 10.1093/dnares/dsz009] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 03/30/2019] [Indexed: 12/12/2022] Open
Abstract
Glaucophyta are members of the Archaeplastida, the founding group of photosynthetic eukaryotes that also includes red algae (Rhodophyta), green algae, and plants (Viridiplantae). Here we present a high-quality assembly, built using long-read sequences, of the ca. 100 Mb nuclear genome of the model glaucophyte Cyanophora paradoxa. We also conducted a quick-freeze deep-etch electron microscopy (QFDEEM) analysis of C. paradoxa cells to investigate glaucophyte morphology in comparison to other organisms. Using the genome data, we generated a resolved 115-taxon eukaryotic tree of life that includes a well-supported, monophyletic Archaeplastida. Analysis of muroplast peptidoglycan (PG) ultrastructure using QFDEEM shows that PG is most dense at the cleavage-furrow. Analysis of the chlamydial contribution to glaucophytes and other Archaeplastida shows that these foreign sequences likely played a key role in anaerobic glycolysis in primordial algae to alleviate ATP starvation under night-time hypoxia. The robust genome assembly of C. paradoxa significantly advances knowledge about this model species and provides a reference for exploring the panoply of traits associated with the anciently diverged glaucophyte lineage.
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Kim HM, Kim HK, Lee JH, Park EA, Park JB, Lee SP, Kim YJ, Sohn DW, Lee YB, Kim YJ, Yoon JH. P1603 Changes of cardiac function in cirrhotic patients after liver transplantation. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.1021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
This study was supported by the grant of CJ healthcare 2016 research fund.
Background
Liver cirrhosis (LC) has been known to affect cardiovascular performance. Limited study have evaluated the alteration of myocardial function in patients with LC after liver transplantation (LT).
Purpose
The aim of study was to evaluate changes of cardiac function in patients with cirrhosis following LT using conventional and speckle-tracking echocardiography and late gadolinium enhancement (LGE) of cardiac magnetic resonance (MR).
Methods
Thirty-five patients with cirrhosis (mean age, 57.1 ± 9.0; male, 75%) who were listed for LT were prospectively enrolled. Patients underwent conventional, speckle-tracking echocardiography, and cardiac MR imaging with LGE. Echocardiography and cardiac MR were performed at pre and 1 year after LT. Cirrhotic patients were compared with normal control (n = 20, mean age, 65.0 ± 14.8; men, 11(55%)) and echocardiographic and cardiac MR data were compared pre and post LT.
Results
Conventional and speckle-tracking echocardiography and Cardiac MR imaging demonstrated hyperdynamic left ventricular (LV) function in patients with cirrhosis (LV ejection fraction (EF) with cardiac MR 67.8 ± 7.0% in LC vs. 63.4 ± 6.4% in control, P = 0.028; global longitudinal strain (GLS) -24.3 ± 2.6% in LC vs. -18.6 ± 2.2% in control, P < 0.001). There were no LGE in patients with cirrhosis and no significant differences in LV size, LV wall thickness, LV mass index, and diastolic function between cirrhotic patients and control group (all P > 0.1). Corrected QT interval (QTc) in electrocardiogram was prolonged in LC patients (P < 0.001). One-year after LT, LV end-diastolic diameter and LV end-diastolic volume significantly decreased (P = 0.016 and 0.022, respectively). Although LVEF showed no significant changes 1 year post-LT (P = 0.362), LV-GLS (from -24.7 ± 1.8% to -20.8 ± 3.4%, P < 0.001) significantly decreased. QTc interval also decreased 1 year after LT (from 470.4 ± 29.6msec to 428.2 ± 31.6msec, P = 0.001).
Conclusions
The present study demonstrated that cirrhotic patients showed hyperdynamic circulation and prolonged QTc interval compared with normal controls. After 1 year LT, LV size reduced and augmented LV function was normalized. Given that no LGE in cardiac MR and normalized GLS and QTc after LT, cardiac dysfunction in LC patients could be reversed by LT.
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Park DG, Seo WW, Kim SE, Lee JH, Han KR, Oh DJ. P1478 Evaluation of reversibility of alcoholic cardiomyopathy using doubaimine stress echocardiography. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Alcoholic cardiomyopathy (CM) is known as a reversible CM. Appropriate medications with cessation of alcohol may lead to full recovery of chamber size and contractility. But there is not much information about morphologic and hemodynamic changes over the course of treatment, and predictors of reversibility. We experienced the patient with alcoholic CM who was admitted with heart failure and recovered over 1 year and 5 months. He consumed daily 180g alcohol for 6 months before admission. On initial echocardiography, left atrial (LA) dimension, left ventricular (LV) systolic dimension (SD) and diastolic dimension (DD), inferior vena cava (IVC) size, and ejection fraction (EF) were 50 mm, 69 mm, 78 mm, 27 mm and 22%, respectively. Doppler examination revealed a restrictive pattern in tansmitral flow, and a systolic peak velocity/diastolic peak velocity (S/D) ratio of less than 1 in pulmonary vein flow (PVF). Pressure gradient through tricuspid regurgitation was 29 mmHg. Coronary angiogram confirmed no significant stenosis. Within 1 week after medications, LVEF increased mainly by decrease of enlarged LVSD which might be partly caused by volume overload, evidenced by respiratory variation of transmitral flow. On 8th day, we performed dobutamine stress echocardiography (DSE) to evaluate reversibility because LVEF slightly decreased despite decrease of LVDD. During dobutamine infusion, both LVDD and LVSD decreased along with increase of LVEF according to dose escalation. From 1 to 2 months, LVEF slightly increased with decrease of LVDD and LVSD. Afterwards, LVEF was normalized mainly with decrease of LVSD, and LVEF was completely normalized at 1 year and 5 month after initiation of treatment. Initial increase of LVEF might reflect decrease of LVSD by relief of volume overload rather than improving LV contractility. Based on this observation of serial change of chambers and LVEF, we speculate that increased LV wall tension, which is induced by increase of preload as a compensating mechanism for increasing stroke volume, might aggravate LVEF in later stage of heart failure with reduced EF. The sequence of normalization in chamber size was IVC, and then LA, and then LVDD. Transmitral flow as an indicator of diastolic dysfunction changed from restrictive (transiently existed only for 1 week) to abnormal relaxation pattern (no change since that time). PVF pattern showed S/D ratio < 1 until 1 week, and then triphasic pattern at 1 month, finally biphasic pattern at 8 month after initiation of medications. We observed a serial change of echocardiographic findings in patient with alcoholic CM, which might provide an insightful information to understand reverse of LV or LA remodeling associated with hemodynamic parameters, and DSE might be helpful to evaluate reversibility of LV systolic function and convince patients who are reluctant to medications.
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Suh CH, Lee JH, Lee MK, Cho SJ, Chung SR, Choi YJ, Baek JH. CT and MRI Findings of Glomangiopericytoma in the Head and Neck: Case Series Study and Systematic Review. AJNR Am J Neuroradiol 2020; 41:155-159. [PMID: 31806599 DOI: 10.3174/ajnr.a6336] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 10/07/2019] [Indexed: 11/07/2022]
Abstract
Glomangiopericytoma is a rare sinonasal mesenchymal tumor of borderline or low malignant potential. We reviewed the CT and MR imaging findings of head and neck glomangiopericytoma via a retrospective case series study and systematic review. Our study revealed that glomangiopericytoma is a well-defined lobulated avidly enhancing soft-tissue mass with erosive bony remodeling that is most commonly found in the sinonasal cavity. Typically, it is hyperintense on T2-weighted images with vascular signal voids, has a high mean ADC value, and a wash-in and washout pattern on dynamic contrast-enhanced MR imaging. Although the CT findings are nonspecific, typical MR imaging findings, including those on the ADC map and dynamic contrast-enhanced MR imaging, may be helpful for differentiating glomangiopericytomas from other hypervascular tumors in the head and neck.
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