Ebook Diagnostic imaging - Emergency (2nd edition): Part 2
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Ebook Diagnostic imaging - Emergency (2nd edition): Part 2
Diagnostic Imaging: Emergencyfragment and the medial condyle of the humerus. This MR was obtained in a 13-year-old baseball pitcher with an acute inju Ebook Diagnostic imaging - Emergency (2nd edition): Part 2ury. (Right) Anteroposterior radiograph shows reduction and screw fixation of the medial epicondyie avulsion fracture in the same patient.(Left) Anteroposterior radiograph shows avulsion of the tip of the medial epicondyle Elin a 12 year old who started pitching 3 weeks ago, now with elbow pain and Ebook Diagnostic imaging - Emergency (2nd edition): Part 2presenting for radiog-aphs. (Right) Coronal T2WI MR in the same patient shows hyperintense signal throughout the medial epicondyle ossification centerEbook Diagnostic imaging - Emergency (2nd edition): Part 2
. The small osseous fragment could not be identified. This is an example of Little Leaguer’s elbow.Part II - NontraumaSection 1 - Central Nervous SystDiagnostic Imaging: Emergencyfragment and the medial condyle of the humerus. This MR was obtained in a 13-year-old baseball pitcher with an acute inju Ebook Diagnostic imaging - Emergency (2nd edition): Part 2Nontrauma Introduction to CNS Imaging, NontraumaAnne G. Osborn, MO, FACROverviewPatients with a number of different nontraumatic d sorders of the brain, spine/spmal cord, and head and neck may present in the emergency department. While virtually any disease in any body part can be seen in the emerge Ebook Diagnostic imaging - Emergency (2nd edition): Part 2ncy department, some of the most common urgent entities are discussed in this section.Nontraumatic Brain EmergenciesWhom to Scan? When to Scan?Head CTEbook Diagnostic imaging - Emergency (2nd edition): Part 2
scans in nontraumatized patients with CNS-related comp aints are commonly obtained in emergency settings and account for 70-80% of all CT requests frDiagnostic Imaging: Emergencyfragment and the medial condyle of the humerus. This MR was obtained in a 13-year-old baseball pitcher with an acute inju Ebook Diagnostic imaging - Emergency (2nd edition): Part 2er 95% have positive neurologic findings.Grov/ing concerns about both the costs and the radiation exposure that occurs during CT acquisition have prompted attempts to identify clinical variaoles that are independent predictors of abnormal head CT findings in emergency department patients. Six such c Ebook Diagnostic imaging - Emergency (2nd edition): Part 2linical variables have been identified:-1Age > 70 years-2Focal neurologic deficit-3Altered mental status-4History of malignancy-5Nausea &/or vomiting-Ebook Diagnostic imaging - Emergency (2nd edition): Part 2
6Derangements in coagulation profile751Diagnostic Imaging: EmergencyRecent studies do not support the routine use of brain CT in patients under the agDiagnostic Imaging: Emergencyfragment and the medial condyle of the humerus. This MR was obtained in a 13-year-old baseball pitcher with an acute inju Ebook Diagnostic imaging - Emergency (2nd edition): Part 2o, ditziness, drug use, blood pressure abnormality, or generalized symptoms such as fatigue or diffuse weakness.Presentation at an emergency department v/ith a known patient history of seizure is also not predictive of abnormal head CT findings.Nontraumatic Hemorrhage and Vascular LesionsSpontaneous Ebook Diagnostic imaging - Emergency (2nd edition): Part 2 (i.e., nontraumatic) intracranial hemorrhage and vascular brain disorders are second only to trauma as neurologic causes of death and disability. WheEbook Diagnostic imaging - Emergency (2nd edition): Part 2
n a patient with no history of trauma P'esents in the emergency department With sudden onset of a neurologic deficit, NECT scans are the most appropriDiagnostic Imaging: Emergencyfragment and the medial condyle of the humerus. This MR was obtained in a 13-year-old baseball pitcher with an acute inju Ebook Diagnostic imaging - Emergency (2nd edition): Part 2ent at risk for hematoma expansion? Should further emergent imaging be performed?The most recent American Heart Association/A merican Stroke Association guidelines recommend emergent CT or MR as the initial screening procedure to dlstingu $h Ischemic stroke from nontraumatiC intracranial hemorrhage. Ebook Diagnostic imaging - Emergency (2nd edition): Part 2 If the patient Is older than 45 years and has preexisting systemic hypertension, a putaminal, tha amic, or posterior fossa intracranial hemorrhage IsEbook Diagnostic imaging - Emergency (2nd edition): Part 2
almost always hypertensive in origin and does not require additional imaging.In contrast, lobar or deep brain bleeds in younger patients or normotensDiagnostic Imaging: Emergencyfragment and the medial condyle of the humerus. This MR was obtained in a 13-year-old baseball pitcher with an acute inju Ebook Diagnostic imaging - Emergency (2nd edition): Part 2abnormalities, such asa-teriovenous malformation, neop asm, and cerebral sinovenous thrombosis.A CT angiogram (CTA) is Indicated in patients With sudden clinical deterioration and a mixed-density parenchymal hematoma (indicating rapid bleeding or coagulopathy). CTA is also an appropriate next step i Ebook Diagnostic imaging - Emergency (2nd edition): Part 2n children and young/middle-aged adults With spontaneous intracranial hemorrhage detected on screening NECT. Likewise, CTA is appropriate in patientsEbook Diagnostic imaging - Emergency (2nd edition): Part 2
with aneurysmal, perimesencephalic nonaneurysmal, orconvexal subarachnoid hemorrhage.If a CT A Is negative, emergency MR is rarely necessary in patentDiagnostic Imaging: Emergencyfragment and the medial condyle of the humerus. This MR was obtained in a 13-year-old baseball pitcher with an acute inju Ebook Diagnostic imaging - Emergency (2nd edition): Part 2dence for prior hemorrhage on T2* sequences (GRE or SWI) can be very helpful in narrowing the differential diagnosis. Multifocal "black dots" in elderly patients with S1CH is typical for chronic hypertensive encephalopathy and amyloid angiopathy (CAA). Basal ganglia and cerebellar "black dots” are c Ebook Diagnostic imaging - Emergency (2nd edition): Part 2ommon in chronic hypertension but rare in CAA. Conversely, peripheral (cortical, meningeal) “blooming black dots" on T2* are more common in CAA.StrokeEbook Diagnostic imaging - Emergency (2nd edition): Part 2
s"Stroke" is a generic term that describes a clinical event characterized by sudden onset of a neurologic deficit. However, not all strokes are the saDiagnostic Imaging: Emergencyfragment and the medial condyle of the humerus. This MR was obtained in a 13-year-old baseball pitcher with an acute inju Ebook Diagnostic imaging - Emergency (2nd edition): Part 2troke, accounting for 80% of all cases.The remaining 20% of strokes are mostly hemorrhagic, divided among primary "spontaneous" (nontraumatic) intracranial hemorrhage, nontraumatic subarachnoid hemorrhage, and venous occlusions.As the clinical diagnosis of acute stroke is inaccurate in 15-20% of cas Ebook Diagnostic imaging - Emergency (2nd edition): Part 2es, imaging has become an essential component of rapid stroke triage. When and how to image patients with suspected acute stroke varies from institutiEbook Diagnostic imaging - Emergency (2nd edition): Part 2
on to institution. Protocols are based on elapsed time since symptom onset, availability of emergent imaging with appropriate software reconstructionsDiagnostic Imaging: Emergencyfragment and the medial condyle of the humerus. This MR was obtained in a 13-year-old baseball pitcher with an acute inju Ebook Diagnostic imaging - Emergency (2nd edition): Part 2 answered quickly and accurate y-1Is intracranial hemorrhage or a stroke “mimic" present?-2Is a large vessel occluded?Diagnostic Imaging: Emergencyfragment and the medial condyle of the humerus. This MR was obtained in a 13-year-old baseball pitcher with an acute injuGọi ngay
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