• 제목/요약/키워드: Cardiac magnetic resonance imaging, Echocardiography

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Assessment of Right Ventricular Function in Pulmonary Hypertension with Multimodality Imaging

  • Seo, Hye Sun;Lee, Heon
    • Journal of Cardiovascular Imaging
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    • 제26권4호
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    • pp.189-200
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    • 2018
  • Pulmonary hypertension (PH) is defined as resting mean pulmonary artery pressure ${\geq}25mmHg$ and is caused by multiple etiologies including heart, lung or other systemic diseases. Evaluation of right ventricular (RV) function in PH is very important to plan treatment and determine prognosis. However, quantification of volume and function of the RV remains difficult due to complicated RV geometry. A number of imaging tools has been utilized to diagnose PH and assess RV function. Each imaging technique including conventional echocardiography, three-dimensional echocardiography, strain echocardiography, computed tomography and cardiac magnetic resonance imaging has-advantages and limitations and can provide unique information. In this article, we provide a comprehensive review of the utility, advantages and shortcomings of the multimodality imaging used to evaluate patients with PH.

Paradoxical Response of Giant Left Atrial Appendage Aneurysm after Catheter Ablation of Atrial Fibrillation

  • Chung, Jee Won;Shim, Jaemin;Shim, Wan Joo;Kim, Young-Hoon;Hwang, Sung Ho
    • Investigative Magnetic Resonance Imaging
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    • 제20권2호
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    • pp.132-135
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    • 2016
  • We report the case of a 43-year-old male with both giant left atrial appendage (LAA) aneurysm and drug-refractory atrial fibrillation (AF). The patient was treated with percutaneous electrical isolation of cardiac arrhythmogenic substrate, and has been free of AF symptom over one year. Although the surgical resection of giant LAA aneurysm is mostly used to prevent systemic thromboembolism, we have performed follow-up of the giant LAA aneurysm using cardiac magnetic resonance (CMR) imaging and transesophageal echocardiography (TEE) after the successful catheter ablation of refractory AF. At one-year follow-up CMR, the giant LAA aneurysm showed remarkable enlargement as well as decreased contractility. Additionally, one-year follow-up TEE showed spontaneous echo contrast as an indicator of blood stasis in the giant LAA aneurysm. Those findings of giant LAA aneurysm suggest that the risk of thromboembolism may be high despite termination of AF.

Effects of Sodium/Glucose Cotransporter 2 (SGLT2) Inhibitors on Cardiac Imaging Parameters: A Systematic Review and Meta-analysis of Randomized Controlled Trials

  • Caitlin Fern Wee;Yao Hao Teo;Yao Neng Teo;Nicholas LX Syn;Ray Meng See;Shariel Leong;Alicia Swee Yan Yip;Zhi Xian Ong;Chi-Hang Lee;Mark Yan-Yee Chan;Kian-Keong Poh;Ching-Ching Ong;Lynette LS Teo;Devinder Singh;Benjamin YQ Tan;Leonard LL Yeo;William KF Kong;Tiong-Cheng Yeo;Raymond CC Wong;Ping Chai;Ching-Hui Sia
    • Journal of Cardiovascular Imaging
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    • 제30권3호
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    • pp.153-168
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    • 2022
  • Recent studies have shown that sodium/glucose cotransporter 2 (SGLT2) inhibitors might exert favourable changes on cardiac parameters as observed on cardiovascular imaging. We conducted a systematic review and meta-analysis to determine the effects of SGLT2 inhibitors on cardiac imaging parameters. Four electronic databases (PubMed, Embase, Cochrane, Scopus) were searched for studies in which the effects of SGLT2 inhibitors on cardiac imaging parameters were examined. Studies in which a population was administered SGLT2 inhibitors and analysed by echocardiography and/or cardiac magnetic resonance (CMR) imaging were included. Random-effects pair-wise meta-analysis models were utilized to summarize the studies. A total of 11 randomized controlled trials was included with a combined cohort of 910 patients. Comparing patients receiving SGLT2 inhibitors with subjects receiving placebo, the mean change in CMR-measured left ventricular mass (LVM) was -3.87 g (95% confidence interval [CI], -7.77 to 0.04), that in left ventricular end-systolic volume (LVESV) was -5.96 mL (95% CI, -10.52 to -1.41) for combined LVESV outcomes, that in left atrial volume index (LAVi) was -1.78 mL/m2 (95% CI, -3.01 to -0.55) for combined LAVi outcomes, and that in echocardiography-measured E/e' was -0.73 (95% CI, -1.43 to -0.03). Between-group differences were not observed in LVM and LVESV after indexation. The only between-group difference that persisted was for LAVi. Treatment with SGLT2 inhibitors resulted in reduction in LAVi and E/e' on imaging, indicating they might have an effect on outcomes associated with LV diastolic function.

완전히 절제된 심장 점액종의 지연된 뇌전이: 증례보고 및 문헌고찰 (Delayed Cerebral Metastases from Completely Resected Cardiac Myxoma: Case Report and Review of Literature)

  • 김아현;이재욱;이미경;윤평호;김민정
    • Investigative Magnetic Resonance Imaging
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    • 제15권2호
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    • pp.165-169
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    • 2011
  • 심장점액종은 심장의 가장 흔한 양성 종양이다. 하지만 국소전이와 원격전이의 증례들이 낮은 빈도로 보고되어 있다. 뇌경색을 주소로 내원한 49세 여자 환자의 심장초음파에서 심장 점액종이 발견되었으며 수술로 절제 1년 후에 구음장애가 발생하여 촬영한 자기공명영상에서 여러개의 조영증강이 되는 출혈성뇌전이 병변들이 관찰되었다. 방사선치료 후 추적 자기공명영상에서 병변의 크기들이 작아지는 것을 확인할 수 있었다. 양성 종양이지만 심장 점액종은 드물게 지연되어 전이를 보일 수 있다. 저자들은 심장 점액종을 수술로 완전히 절제 후 지연되어 나타난 뇌전이를 경험하여 증례 및 문헌고찰을 하는 바이다.

Anomalous Origin of the Coronary Artery from the Pulmonary Artery in Children and Adults: A Pictorial Review of Cardiac Imaging Findings

  • Hyun Woo Goo
    • Korean Journal of Radiology
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    • 제22권9호
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    • pp.1441-1450
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    • 2021
  • Anomalous origin of the coronary artery from the pulmonary artery is a rare and potentially fatal congenital heart defect. Up to 90% of infants with an anomaly involving the left coronary artery die within the first year of life if left untreated. Patients who survive beyond infancy are at risk of sudden cardiac death. Cardiac CT and MRI are increasingly being used for the accurate diagnosis of this anomaly for prompt surgical restoration of the dual coronary artery system. Moreover, life-long imaging surveillance after surgery is necessary for these patients. In this pictorial review, multimodal cardiac imaging findings of this rare and potentially fatal coronary artery anomaly are comprehensively discussed, and representative images are provided to facilitate the understanding of this anomaly.

Cardiovascular Magnetic Resonance Versus Histopathologic Study for Diagnosis of Benign and Malignant Cardiac Tumours: A Systematic Review and Meta-Analysis

  • Sandra Nobrega;Catarina Martins da Costa;Ana Filipa Amador;Sofia Justo;Elisabete Martins
    • Journal of Cardiovascular Imaging
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    • 제31권4호
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    • pp.159-168
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    • 2023
  • BACKGROUND: The gold standard for diagnosis of cardiac tumours is histopathological examination. Cardiovascular magnetic resonance (CMR) is a valuable non-invasive, radiation-free tool for identifying and characterizing cardiac tumours. Our aim is to understand CMR diagnosis of cardiac tumours by distinguishing benign vs. malignant tumours compared to the gold standard. METHODS: A systematic search was performed in the PubMed, Web of Science, and Scopus databases up to December 2022, and the results were reviewed by 2 independent investigators. Studies reporting CMR diagnosis were included in a meta-analysis, and pooled measures were obtained. The risk of bias was assessed using the Quality Assessment Tools from the National Institutes of Health. RESULTS: A total of 2,321 results was obtained; 10 studies were eligible, including one identified by citation search. Eight studies were included in the meta-analysis, which presented a pooled sensitivity of 93% and specificity of 94%, a diagnostic odds ratio of 185, and an area under the curve of 0.98 for CMR diagnosis of benign vs. malignant tumours. Additionally, 4 studies evaluated whether CMR diagnosis of cardiac tumours matched specific histopathological subtypes, with 73.6% achieving the correct diagnosis. CONCLUSIONS: To the best of our knowledge, this is the first published systematic review on CMR diagnosis of cardiac tumours. Compared to histopathological results, the ability to discriminate benign from malignant tumours was good but not outstanding. However, significant heterogeneity may have had an impact on our findings.