Over the past 10 years, CT angiography (CTA) has been replacing ventilation/perfusion (VQ) imaging as “the gold standard” for imaging pulmonary embolism (PE). Some would say that’s with good reason: CT is faster, produces sharper images, and is usually readily available in most hospitals. However, using CT for diagnosing PE is a big concern for some doctors, who say the … read more »

Patients with asthma may have significant changes in their bronchial structure that reflect restrictions in airflow, a small new study finds. The research appears in the December issue of Radiology.

Using data from CT scans and pulmonary function tests performed on 27 patients, researchers in France compared bronchial measurements in 15 men and women with asthma to those of 12 … read more »

People with H1N1 flu have normal chest x-rays more than half the time, while patients who are severely ill tend to be at high risk for pulmonary embolism (PE), says a study published this month in the American Journal of Roentgenology.

In the study, researchers from the University of Michigan at Ann Arbor reviewed records of more than 60 patients … read more »

A recent study was conducted to evaluate the perfusion of ischemic myocardium on 64-MDCT coronary angiography.

The study, reported in AJR, concluded that in general, on 64-MDCT coronary angiography, ischemic myocardium is characterized by less perfusion of the subendocardium during systole and normal perfusion during diastole.

The Study
The study group included 34 patients who either had effort or rest stable angina or … read more »

A recent study set out to determine the accuracy of 16- and 64-section CT for assessment of coronary artery bypass grafts (CABGs). … read more »

For many years, the ventilation-perfusion (V/Q) scan was the cornerstone procedure for diagnosing pulmonary embolism (PE).

More recently, CT pulmonary angiography (CTPA) has become the most frequently used diagnostic technique for pulmonary embolism. … read more »

Persistent Localized PIE Can Occur in the Absence of Mechanical Ventilation presents an interesting case study. … read more »

The “rule-in” process for acute chest pain generates an estimated $600 million per year in unnecessary in-patient expenses.

When a patient presents to the emergency room with acute chest pain, their acute coronary syndrome may include many different entities: ST-elevation myocardial infarction (MI), non-ST-elevation MI, and unstable angina. Accurate diagnosis can most often lead to fast, often life-saving appropriate treatment.

Unfortunately, recent … read more »

Air embolization (AE) is a potentially fatal complication of central venous catheter placement, manipulation, removal, or exchange. … read more »

A recent study was conducted to determine the radiologic findings of chronic granulomatous disease (CGD) in adults. … read more »