Long-term results of ventricular septation for double-inlet left ventricle†.

Objectives: To review the long-term surgical outcomes of ventricular septation for double-inlet left ventricle and reconsider the possibility of ventricular septation as an option of surgical treatments.

Methods: Between 1978 and 1994, 22 patients with double-inlet left ventricle underwent ventricular septation. The mean age at operation was 5.

Optimal target vessel selection for composite and sequential radial artery grafting with an in situ internal thoracic artery.

Objectives: We retrospectively evaluated graft patency in patients who underwent no-touch aortic arterial off-pump coronary artery bypass grafting to determine the optimal selection of target vessels for improved graft patency of composite and sequential radial artery I-grafts.

Methods: The radial artery was anastomosed to the end of an in situ internal thoracic artery and was sequentially anastomosed to non-left anterior descending arteries. This composite graft was defined as an "I-graft.

Asian consortium on radiation dose of pediatric cardiac CT (ASCI-REDCARD).

Background: With incremental utilization of pediatric cardiac CT in congenital heart disease, it is imperative to define its current radiation dose levels in clinical practice in order to help imagers optimize CT protocols, particularly in Asia and other developing countries where CT physicists are not readily available.

Objective: To evaluate current radiation dose levels and influencing factors in cardiac CT in children with congenital heart disease in Asia by conducting a retrospective multi-center, multi-vendor study.

Materials And Methods: We included 1,043 pediatric cardiac CT examinations performed in 8 centers between January 2014 and December 2014 to evaluate congenital heart disease.

Late Wall Thickening and Calcification in Patients After Kawasaki Disease.

Objectives: To evaluate the relationship between the initial diameters of the coronary arteries immediately after the onset of Kawasaki disease (KD) and late increased coronary wall thickening/coronary artery calcification (CAC).

Study Design: Sixty-five patients (50 males and 15 females) who had undergone selective coronary angiography (CAG) <100 days after the onset of KD were studied late in disease by dual-source computed tomography (DSCT). The maximum diameters of each segment were measured in the initial CAGs, and the relationship between the maximum diameters and the appearance of increased wall thickening/CAC was analyzed.

Radiation-Dose-Lowering Effects of Landiolol Hydrochloride in Coronary Angiography Using Computed Tomography (DELIGHT) - A Prospective Multicenter Study.

Background: Controlling and decreasing the heart rate (HR) of patients during coronary computed tomography angiography (CCTA) is necessary to reduce radiation exposure and improve image quality. This prospective multicenter study aimed to investigate whether HR control with landiolol hydrochloride is useful for reducing radiation exposure during CCTA.

Methods and results: We investigated 219 patients with suspected ischemic heart disease whose pretest HRs were 50-80 beats/min.

Measurements of Coronary Artery Aneurysms Due to Kawasaki Disease by Dual-Source Computed Tomography (DSCT).

Diameters of coronary artery aneurysms (CAAs) complicating acute phase KD can strongly predict the long-term prognosis of coronary artery lesions (CAL). Recently, computed tomographic angiography (CTA) has been used to detect CAL, and the purpose of this study was to determine whether coronary artery diameters measurements by CTA using dual-source computed tomography (DSCT) can be used instead of coronary angiogram (CAG) measurements. Twenty-five patients (22 males and three females) with CAL due to KD, who had undergone both CTA and CAG within one year, were retrospectively evaluated between 2007 and 2013.

[Role of cardiac computed tomography in cardiac surgery].

In the field of cardiovascular surgery, cardiac computed tomography (CT) has served an important role in association with the improvement of the spatial and temporal resolution. Because CT angiography (CTA) provides more available information than plain CT, CTA has been increasingly used to access the coronary arteries and graft patency after coronary artery bypass grafting (CABG). Recently, minimally invasive cardiac surgeries, including CABG with left mini-thoracotomy and mitral valve surgery with right mini-thoracotomy, are revived, which requires preoperative CTA to make a strategy of incision placement on the basis of anatomical relationship between the target structure of the heart and the thorax.

Dynamic late gadolinium enhancement simply quantified using myocardium to lumen signal ratio: normal range of ratio and diffuse abnormal enhancement of cardiac amyloidosis.

Purpose: To detect abnormal myocardial tissue in patients with diffuse myocardial disease, we propose a simple technique of late gadolinium enhancement (LGE) using routine myocardial imaging modalities.

Materials And Methods: We retrospectively reviewed LGE images from 51 patients with normal myocardium and 10 patients with pathologically proven cardiac amyloidosis (CA). We obtained sequential LGE images from patients at 2, 5, 10, and 20 minutes after injection of Gd-DTPA (0.

An elderly case of right ventricular outflow obstruction precisely diagnosed and successfully treated with surgical repair.

Congenital diseases causing an obstruction of the right ventricular outflow are difficult to precisely diagnose, especially in elderly patients. Here, we describe a 76-year-old woman who presented to our hospital with shortness of breath on exertion and was finally diagnosed as infundibular pulmonary stenosis by multiple modalities. Surgery was successfully performed and the symptom was relieved.

Dual-energy CT head bone and hard plaque removal for quantification of calcified carotid stenosis: utility and comparison with digital subtraction angiography.

We evaluated quantification of calcified carotid stenosis by dual-energy (DE) CTA and dual-energy head bone and hard plaque removal (DE hard plaque removal) and compared the results to those of digital subtraction angiography (DSA). Eighteen vessels (13 patients) with densely calcified carotid stenosis were examined by dual-source CT in the dual-energy mode (tube voltages 140 kV and 80 kV). Head bone and hard plaques were removed from the dual-energy images by using commercial software.

Dual-energy direct bone removal CT angiography for evaluation of intracranial aneurysm or stenosis: comparison with conventional digital subtraction angiography.

Dual-energy CT can be applied for bone elimination in cerebral CT angiography (CTA). The aim of this study was to compare the results of dual-energy direct bone removal CTA (DE-BR-CTA) with those of digital subtraction angiography (DSA). Twelve patients with intracranial aneurysms and/or ICA stenosis underwent a dual-source CT in dual-energy mode.