radiology Flashcards

1
Q

oreo cookie sign seen in

A

TheOreo cookie signrefers to the appearance of apericardial effusionon lateral radiographs of the chest.A vertical opaque line (pericardial fluid)separating a vertical lucent line directly behind sternum (pericardial fat) anteriorly from a similar lucent vertical lucent line (epicardial fat) posteriorly. It is now more often and better observed on CT

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2
Q

water bottle sign / leather bottle appearence / flask shaped heart

A

Front chest x-ray demonstrates marked enlargement of the cardiac outline. This was due to pericardial effusion and is a good example of thewater bottle sign. Thisrefers to the shape of the cardiac silhouette on erect frontal chest x-rays in patients who have a very largepericardial effusion. The fluid, often measuring a litre or more, causes the pericardium to sag mimicking an old-fashioned water bottle sitting on a bench.Typically the effusion has accumulated over many weeks (e.g. in patients with malignancy) and the pericardium has gradually stretched

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3
Q

which view can detect minimum pleural fliud

A

lateral view 75ml

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4
Q

xray finding of chf

A

cardiomegaly
kerley b lines
Kerley B lines are short horizontal lines near periphery of the lung near the costophrenic angles, and indicate pulmonary congestion secondary to dilation of pulmonary lymphatic vessels

meniscus sign
pulmonary vascular congestion

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5
Q

how to differentiate between systolic and diastolic heart failure

A

echocardiography

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