Importance of Hemodynamic Factors in the Prognosis of Symptomatic Carotid Occlusion
Article Abstract:
PET scans to detect stage II cerebral hemodynamic failure may identify patients who have a high risk of stroke. Stage II hemodynamic failure occurs when oxygen extraction by the brain increases because blood flow to the area has decreased. Researchers used PET scans to detect this condition in 81 patients with a history of stroke or transient ischemic attack (TIA). They were then followed for an average of 31 months. During that time, 12 of the 39 patients with stage II hemodynamic failure had a stroke, compared to only 3 of 42 patients without the condition. This condition increased the risk of stroke 6 to 7 times.
Publication Name: JAMA, The Journal of the American Medical Association
Subject: Health
ISSN: 0098-7484
Year: 1998
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Nuclear medicine
Article Abstract:
A number of radiopharmaceuticals have been approved by the FDA. Combined use of positron emission tomography (PET) fludeoxyglucose F 18 metabolic imaging and single photon emission computed tomography perfusion is used to determine the need for revascularization. Enhanced PET imaging is improving the identification of recurrent cancers and brain tumors. Coronary bypass grafting surgery is considered an alternative to heart transplants when diagnostic imaging shows a viable heart. Monoclonal antibody research is advancing in cancer imaging.
Publication Name: JAMA, The Journal of the American Medical Association
Subject: Health
ISSN: 0098-7484
Year: 1995
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Autopsy Diagnoses of Malignant Neoplasms: How Often Are Clinical Diagnoses Correct?
Article Abstract:
Many cancers are not accurately diagnosed during life, which makes autopsies even more important. In a study of 1,005 autopsies at one hospital over a 10-year period, 250 cases of malignant cancer were discovered after the patient's death. In 100 (44%) of these cases, the cancer was either not diagnosed or misdiagnosed while the patient was alive. In 57 of the patients, the cancer was believed to be the most likely cause of death.
Publication Name: JAMA, The Journal of the American Medical Association
Subject: Health
ISSN: 0098-7484
Year: 1998
User Contributions:
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