Update on imaging in Code Stroke.

"Code Stroke" is a multidisciplinary procedure designed to detect acute ischemic strokes and transfer patients for early reperfusion. Selecting these patients requires multimodal imaging with either CT or MRI. 1) Conventional studies without contrast material are obligatory to detect bleeding. Applying the ASPECTS scale, these studies can also identify and quantify areas of early infarction. 2) In candidates for mechanical thrombectomy, angiographic studies are necessary to identify stenoses and obstructions and to evaluate the collateral circulation. 3) Patients with known onset between 6 and 24h or with unknown onset require perfusion studies to distinguish between infracted tissue and recoverable ischemic tissue. Semi-automatic software facilitates diagnosis, but radiologists must interpret its output.

[Ultrasonographic diagnosis of tumors of the gastrointestinal tract]. / Diagnóstico ultrasonográfico de las tumoraciones del tracto gastrointestinal.

The sonographic findings in 51 tumours of the gastro-intestinal tract are presented. In 30 instances, ultrasound was the first diagnostic technique employed and it suggested the final diagnosis which was confirmed by radiology and/or endoscopy including a definitive histological diagnosis.