Extraction of the Two-Dimensional Cardiothoracic Ratio from Digital PA Chest Radiographs: Correlation with Cardiac Function and the Traditional Cardiothoracic Ratio
نویسندگان
چکیده
منابع مشابه
Calculation of the Cardiothoracic Ratio from Portable Anteroposterior Chest Radiography
Cardiothoracic ratio (CTR), the ratio of cardiac diameter (CD) to thoracic diameter (TD), is a useful screening method to detect cardiomegaly, but is reliable only on posteroanterior chest radiography (chest PA). We performed this cross-sectional 3-phase study to establish reliable CTR from anteroposterior chest radiography (chest AP). First, CD(Chest PA)/CD(Chest AP) ratios were determined at ...
متن کاملEbstein’s Anomaly: An Impressive Cardiothoracic Ratio
Cardiothoracic ratio upper to 0.60 is a factor of poor prognostic in patients with Ebstein’s anomaly and the prognostic is worse if is associated with others congenital heart disease. We present 4-months black boy with Ebstein’s anomaly associated with atrial septal defect, pulmonary valve atresia and patent ductus arteriosus wherein the cardiothoracic ratio nearly 1.0. The patient died five ho...
متن کاملEstablishing the Cardiothoracic Ratio Using Chest Radiographs in an Indigenous Ghanaian Population: A Simple Tool for Cardiomegaly Screening.
BACKGROUND Cardiothoracic ratio is a simple and cheap tool in the estimation of heart size. It is a useful index of cardiac size evaluation, and a value of 50% is generally considered to indicate the upper limit of normal. STUDY OBJECTIVE This study is to ascertain the normal mean value in cardiothoracic ratio of Ghanaians using chest radiography to serve as baseline for screening for cardiom...
متن کاملPrenatal measurement of cardiothoracic ratio in evaluation of heart disease.
The cardiothoracic ratio was measured in 410 normal fetuses and in a group of 73 fetuses with functional or structural heart disease. In normal fetuses it was fairly constant throughout pregnancy, but of those with congenital heart disease it was raised in cases of Ebstein's anomaly, tricuspid dysplasia, atrioventricular septal defect, and complete heart block. In some forms of congenital heart...
متن کاملa case study of the two translators of the holy quran: tahereh saffarzadeh and laleh bakhtiar
بطورکلی، کتاب های مقدسی همچون قران کریم را خوانندگان میتوان مطابق با پیش زمینه های مختلفی که درند درک کنند. محقق تلاش کرده نقش پیش زمینه اجتماعی-فرهنگی را روی ایدئولوژی های مترجمین زن و در نتیجه تاثیراتش را روی خواندن و ترجمه آیات قرآن کریم بررسی کند و ببیند که آیا تفاوت های واژگانی عمده ای میان این مترجمین وجود دارد یا نه. به این منظور، ترجمه 24 آیه از آیات قرآن کریم مورد بررسی مقایسه ای قرار ...
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ژورنال
عنوان ژورنال: Journal of Digital Imaging
سال: 2004
ISSN: 0897-1889,1618-727X
DOI: 10.1007/s10278-003-1900-3