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Related Concept Videos

Transient Ischemic Attack l: Introduction01:26

Transient Ischemic Attack l: Introduction

A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...
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An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
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DefinitionTraumatic brain injury, or TBI, is a disturbance of normal brain function induced by an external mechanical force, such as a direct blow to the head or a penetrating injury. It can affect both brain structure and function, producing a wide range of clinical outcomes. TBI is a heterogeneous condition, meaning its effects may differ based on the type, location, and severity of the injury.Basis of ClassificationTBI is classified based on severity, injury mechanism, or pathophysiology. In...
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CT in post-traumatic hypoperfusion complex--a pictorial review.

Kundum R Prasad1, Atin Kumar, Shivanand Gamanagatti

  • 1Department of Radiology, JPN Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi-110029, India.

Emergency Radiology
|December 25, 2010
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Hypoperfusion complex, a rare finding in blunt trauma CT scans, is more prevalent in children. Recognizing its CT signs aids in patient triage and prevents unnecessary surgeries, improving outcomes.

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Area of Science:

  • Radiology
  • Trauma Imaging
  • Pediatric Radiology

Background:

  • Hypoperfusion complex is an uncommon CT finding in blunt trauma.
  • It presents a diagnostic challenge, particularly in differentiating from abdominal organ injuries.
  • Early recognition is crucial due to the poor prognosis associated with this condition.

Purpose of the Study:

  • To increase radiologist awareness and recognition of hypoperfusion complex on CT.
  • To highlight key visceral and vascular CT findings indicative of this entity.
  • To aid in timely triage and management of blunt abdominal trauma patients.

Main Methods:

  • This is a pictorial review.
  • The review focuses on computed tomography (CT) manifestations.
  • Abdominal CT findings associated with hypoperfusion complex are described.

Main Results:

  • Hypoperfusion complex is more common in children than adults.
  • Specific visceral and vascular CT findings can alert radiologists to this entity.
  • Recognition can prevent unnecessary laparotomies.

Conclusions:

  • Awareness of hypoperfusion complex CT findings is vital for clinicians and radiologists.
  • Early identification can guide appropriate patient triage and management.
  • Recognizing this entity can avert potentially harmful interventions in blunt abdominal trauma.