Evaluation of Coronary Artery In-stent Restenosis by 64-Section Computed Tomography

Chung, Sang Hoon; Kim, Young Jin; Hur, Jin; Lee, Hye Jeong; Choe, Kyu Ok; Kim, Tae Hoon; Choi, Byoung Wook

doi:10.1097/rti.0b013e3181b5d813

Cited by 25 publications

(15 citation statements)

References 29 publications

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“…Although computed tomography angiography and digital subtraction angiography have been routinely applied to assess coronary artery stenosis, they are not always objective and accurate (11–14). In the clinic, we met several patients who suffered from conspicuous chest pain and had significantly lower blood flow in the CS detected by TTE, but computed tomography angiography and digital subtraction angiography only found a minor coronary artery stenosis (<40%) and electrocardiography (ECG) only showed non-specific changes of ST-T wave.…”

Section: Discussionmentioning

confidence: 99%

Sex-specific assessment of reduced coronary sinus flow in non-hypertensive patients with coronary artery disease at rest

Zheng

Yang

2013

Libyan Journal of Medicine

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BackgroundAccess to data on the coronary flow in the coronary sinus (CS) can aid in the diagnosis of coronary artery disease (CAD). We tested the hypothesis that assessing the CS flow by transthoracic Doppler echocardiography (TTE) at rest can detect coronary artery stenosis in non-hypertensive patients.MethodsThe antegrade phase of coronary flow in the CS was analyzed and compared in 140 male and 135 female non-hypertensive subjects who had all undergone coronary angiography.ResultsThere were statistically significant differences noted between males and females for the CS flow both in normal subjects and patients with CAD. Compared with normal subjects, patients with CAD had significantly lower blood flow in the CS both in males (196.6±174.31 vs. 367.65±168.04 ml/min, P<0.01) and females (183.04±65.46 vs. 244.13±135.43 ml/min P<0.01). For males, the diagnostic sensitivity, specificity, and accuracy of the cutoff value of the CS flow (206 ml/min) for predicting a significant coronary artery stenosis (>70%) were 91.67%, 81.25%, and 85.71%, respectively. For females, those of the cutoff value of the CS flow (195 ml/min) were 85.71%, 75%, and 80%, respectively.ConclusionTTE can effectively detect coronary hemodynamically significant stenosis in non-hypertensive male and female patients at different cutoff values.

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Section: Discussionmentioning

confidence: 99%

Sex-specific assessment of reduced coronary sinus flow in non-hypertensive patients with coronary artery disease at rest

Zheng

Yang

2013

Libyan Journal of Medicine

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“…However, in clinical routine practice, these relationships are not that simple. In several clinical studies strut thickness had no significant effect on image quality [44, 45], although stents with a strut thickness of more than 100–140 μ m appear to be associated with poorer image quality [46, 47] (Figure 1). …”

Section: Issues In Ct Imaging or Coronary Stentsmentioning

confidence: 99%

CT Imaging of Coronary Stents: Past, Present, and Future

Mahnken

2012

ISRN Cardiology

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Coronary stenting became a mainstay in coronary revascularization therapy. Despite tremendous advances in therapy, in-stent restenosis (ISR) remains a key problem after coronary stenting. Coronary CT angiography evolved as a valuable tool in the diagnostic workup of patients after coronary revascularization therapy. It has a negative predictive value in the range of 98% for ruling out significant ISR. As CT imaging of coronary stents depends on patient and stent characteristics, patient selection is crucial for success. Ideal candidates have stents with a diameter of 3 mm and more. Nevertheless, even with most recent CT scanners, about 8% of stents are not accessible mostly due to blooming or motion artifacts. While the diagnosis of ISR is currently based on the visual assessment of the stent lumen, functional information on the hemodynamic significance of in-stent stenosis became available with the most recent generation of dual source CT scanners. This paper provides a comprehensive overview on previous developments, current techniques, and clinical evidence for cardiac CT in patients with coronary artery stents.

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“…Cardiac CT is now discussed for a variety of indications including noninvasive coronary angiography, for ruling out significant coronary artery disease (CAD), and follow-up after cardiac surgery and coronary stent implantation [1][2][3][4][5]. Moreover, cardiac CT provides morphological information and facilitates the evaluation of global and regional cardiac function (cardiac valves, perfusion, and vitality) [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Indications, imaging technique, and reading of cardiac computed tomography: survey of clinical practice

et al. 2011

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Evaluation of Coronary Artery In-stent Restenosis by 64-Section Computed Tomography

Cited by 25 publications

References 29 publications

Sex-specific assessment of reduced coronary sinus flow in non-hypertensive patients with coronary artery disease at rest

Sex-specific assessment of reduced coronary sinus flow in non-hypertensive patients with coronary artery disease at rest

CT Imaging of Coronary Stents: Past, Present, and Future

Indications, imaging technique, and reading of cardiac computed tomography: survey of clinical practice

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