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Luis E. Todd
Harvard University
PathologyMagnetic resonance imagingBasilar arteryPituitary tumorsMedicine
4Publications
2H-index
201Citations
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Publications 4
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#2G ElizondoH-Index: 18
Last. Luis E. ToddH-Index: 2
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The usefulness of MR in the diagnosis of vertebrobasilar ischemic strokes has been described. Changes in signal intensity in neural tissue can be detected as early as 3 hr after ischemic stroke, either on supratentorial or infratentorial lesions. We report the MR diagnosis of two cases of basilar artery thrombosis
1 Citations
Purpose Autopsy studies have shown that pregnancy results in physiologic pituitary enlargement. We used magnetic resonance imaging (MRI) to corroborate those findings in vivo . Patients and methods Based on gestational age, 32 normal primigravid patients were divided into three groups: Group I (n = 10), less than 12 gestational weeks; Group II (n = 11), 13 to 26 gestational weeks; and Group III (n = 11), 27 gestational weeks or more. The pituitary dimensions and volumes in these groups were comp...
199 CitationsSource
#1Luis E. ToddH-Index: 2
#2G ElizondoH-Index: 18
Last. Ralph WeisslederH-Index: 159
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Tumor tissues and serum of tumor patients studied by proton nuclear magnetic resonance (NMR) show increased T1 and T2 relaxation times. These increases in T1 and T2 form the basis of tumor detection by magnetic resonance (MR) imaging. In the present work the dependence of the MR imaging signal on T1 and T2 relaxation times will be elucidated. The characteristic MR appearance of a variety of tissues will be discussed on a physiological basis.
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#1G Elizondo (Harvard University)H-Index: 18
#2Ralph Weissleder (Harvard University)H-Index: 159
Last. Luis E. Todd (Harvard University)H-Index: 2
view all 4 authors...
A major goal in medicine is to know the biomolecular and biophysical processes of the human body in normal states; how these processes are altered in the pathological conditions; and how the body by itself or by medical treatment revert the abnormal situation to a normal state.
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