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1.
Eur Neurol ; 86(4): 287-294, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37080179

RESUMEN

The first author is a left-handed, 51-year-old nephrologist who experienced a neurologic event. She underwent neurosurgery complicated by hemorrhage. Postoperatively, she developed persistent vertigo and unilateral tongue pain which persisted for over 5 years. Early neuroimaging revealed expected encephalomalacia but no neuroanatomical basis for her symptoms. A functional neurological disorder was suspected, and she was seen by several psychiatrists and psychotherapists. However, she suspected a neuroanatomical lesion would better explain her unrelenting symptoms. After seeing many neurologists, a neuroanatomical diagnosis was finally made. The theory and practice of medicine mandate that subjective complaint guides the modality and interpretation of objective evidence. The final neurologist knew where on neuroimaging to look because she was guided by the patient's complaints - vertigo and unilateral tongue pain. In this case, detailed scrutiny of neuroimaging by a neurologist, after encephalomalacia and gliosis were fully completed, gave a more accurate neuroanatomical diagnosis and a more realistic prognosis.


Asunto(s)
Trastornos de Conversión , Médicos , Accidente Cerebrovascular , Femenino , Humanos , Persona de Mediana Edad , Progresión de la Enfermedad , Accidente Cerebrovascular/complicaciones , Accidente Cerebrovascular/diagnóstico por imagen , Dolor
2.
Pain ; 162(3): 835-845, 2021 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-32925594

RESUMEN

ABSTRACT: One in 3 patients with lumbar spinal stenosis undergoing decompressive laminectomy (DL) to alleviate neurogenic claudication do not experience substantial improvement. This prospective cohort study conducted in 193 Veterans aimed to identify key spinal and extraspinal factors that may contribute to a favorable DL outcome. Biopsychosocial factors evaluated pre-DL and 1 year post-DL were hip osteoarthritis, imaging-rated severity of spinal stenosis, scoliosis/kyphosis, leg length discrepancy, comorbidity, fibromyalgia, depression, anxiety, pain coping, social support, pain self-efficacy, sleep, opioid and nonopioid pain medications, smoking, and other substance use. The Brigham Spinal Stenosis (BSS) questionnaire was the main outcome. Brigham Spinal Stenosis scales (symptom severity, physical function [PF], and satisfaction [SAT]) were dichotomized as SAT < 2.42, symptom severity improvement ≥ 0.46, and PF improvement ≥ 0.42, and analyzed using logistic regression. Sixty-two percent improved in 2 of 3 BSS scales (ie, success). Baseline characteristics associated with an increased odds of success were-worse BSS PF (odds ratio [OR] 1.24 [1.08-1.42]), greater self-efficacy for PF (OR 1.30 [1.08-1.58]), lower self-efficacy for pain management (OR 0.80 [0.68-0.94]), less apparent leg length discrepancy (OR 0.71 [0.56-0.91]), greater self-reported alcohol problems (OR 1.53 [1.07-2.18]), greater treatment credibility (OR 1.31 [1.07-1.59]), and moderate or severe magnetic resonance imaging-identified central canal stenosis (OR 3.52 [1.06-11.6]) moderate, OR 5.76 [1.83-18.1] severe). Using opioids was associated with lower odds of significant functional improvement (OR 0.46 [0.23-0.93]). All P < 0.05. Key modifiable factors associated with DL success-self-efficacy, apparent leg length inequality, and opioids-require further investigation and evaluation of the impact of their treatment on DL outcomes.


Asunto(s)
Estenosis Espinal , Veteranos , Descompresión Quirúrgica , Humanos , Laminectomía , Vértebras Lumbares/cirugía , Estudios Prospectivos , Estenosis Espinal/complicaciones , Estenosis Espinal/cirugía , Resultado del Tratamiento
4.
Magn Reson Imaging Clin N Am ; 14(2): 169-82, 2006 May.
Artículo en Inglés | MEDLINE | ID: mdl-16873009

RESUMEN

Dementia is a clinical syndrome with many causes. There often is overlap in the clinical manifestations of various forms of dementia, making them difficult to categorize. Neuroimaging can play an important role in distinguishing one form of dementia from another. Advanced imaging techniques continue to provide greater insight into the underlying pathologic processes in patients who have dementia. Conventional MRI and CT, however, still can contribute useful information when interpreting radiologists are familiar with the patterns of volume loss and signal or density changes that are characteristic of various forms of dementia.

6.
Neuroimaging Clin N Am ; 15(4): 789-802, x, 2005 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-16443491

RESUMEN

Neuroimaging can play an important role in distinguishing one form of dementia from another. Advanced imaging techniques continue to provide greater insight into the underlying pathologic processes in patients who have dementia. Conventional MRI and CT, however, can contribute useful information when interpreting radiologists are familiar with the patterns of volume loss and signal or density changes that are characteristic of various forms of dementia.


Asunto(s)
Encéfalo/diagnóstico por imagen , Encéfalo/patología , Demencia/diagnóstico , Imagen por Resonancia Magnética/métodos , Tomografía Computarizada por Rayos X/métodos , Anciano , Humanos
7.
AJNR Am J Neuroradiol ; 25(9): 1549-52, 2004 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-15502136

RESUMEN

Developmental venous anomalies (DVAs) are common variants of cerebral venous drainage that are typically incidental findings on contrast-enhanced MR imaging studies. We present four cases of asymptomatic DVAs that demonstrate increased cerebral blood flow, cerebral blood volume, mean transit time, and time to peak on perfusion MR images. Our study indicates that alterations in perfusion MR imaging parameters can be seen with uncomplicated DVAs and do not necessarily imply a more ominous underlying etiologic factor, such as hypervascular tumor or stroke.


Asunto(s)
Neoplasias Encefálicas/diagnóstico , Angioma Venoso del Sistema Nervioso Central/diagnóstico , Aumento de la Imagen , Procesamiento de Imagen Asistido por Computador , Angiografía por Resonancia Magnética , Adulto , Velocidad del Flujo Sanguíneo/fisiología , Volumen Sanguíneo/fisiología , Núcleo Caudado/irrigación sanguínea , Núcleo Caudado/patología , Corteza Cerebral/irrigación sanguínea , Corteza Cerebral/patología , Líquido Cefalorraquídeo/fisiología , Diagnóstico Diferencial , Dominancia Cerebral , Femenino , Humanos , Masculino , Persona de Mediana Edad
8.
AJNR Am J Neuroradiol ; 25(7): 1266-8, 2004 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-15313722

RESUMEN

Giant cell angiofibroma (GCA) is a benign pathologic entity that has recently been reported in the literature. Originally described in the orbit, extraorbital sites of disease have also been reported. Herein, we describe the clinical, imaging, and pathologic findings of a case of GCA of the orbit.


Asunto(s)
Angiofibroma/diagnóstico por imagen , Tumores de Células Gigantes/diagnóstico por imagen , Neoplasias Orbitales/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Angiofibroma/patología , Angiofibroma/cirugía , Biopsia , Descompresión Quirúrgica , Diagnóstico Diferencial , Tumores de Células Gigantes/patología , Tumores de Células Gigantes/cirugía , Células Gigantes/patología , Humanos , Masculino , Persona de Mediana Edad , Órbita/diagnóstico por imagen , Órbita/patología , Órbita/cirugía , Neoplasias Orbitales/patología , Neoplasias Orbitales/cirugía , Reoperación
9.
AJNR Am J Neuroradiol ; 24(7): 1465-7, 2003 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-12917148

RESUMEN

Cranial fasciitis is a benign fibroblastic tumor of the skull found almost exclusively in young children. It is histologically identical to nodular fasciitis. We present the clinical, radiologic, and pathologic findings of a 7-month-old male infant with cranial fasciitis of the skull. Herein, we include the first description of this entity's diffusion-weighted imaging appearance. Although rare, cranial fasciitis can mimic more aggressive processes both clinically and radiographically.


Asunto(s)
Fascitis/diagnóstico , Fascitis/patología , Diagnóstico Diferencial , Granuloma Eosinófilo/diagnóstico , Granuloma Eosinófilo/patología , Humanos , Lactante , Imagen por Resonancia Magnética , Masculino , Tomografía Computarizada por Rayos X
10.
J Ultrasound Med ; 21(5): 517-20, 2002 May.
Artículo en Inglés | MEDLINE | ID: mdl-12008814

RESUMEN

OBJECTIVE: To evaluate the efficacy of renal sonography performed in intensive care units on patients with the diagnosis of acute or acute-on-chronic renal failure. METHODS: We reviewed all renal sonograms performed in our institution during 1 year on critically ill patients for evaluation of renal failure. Renal failure was defined as a serum creatinine level greater than 1.5 mg/dL or an increase of greater than 20% from the baseline creatinine level. Exclusion criteria included patient age younger than 18 years and signs or symptoms of obstructive uropathy. Using the electronic medical record, we recorded patient age, sex, blood urea nitrogen level, serum creatinine level, blood urea nitrogen-creatinine ratio, and clinical indication for intensive care unit admission. Sonographic reports were reviewed for the presence or absence of hydronephrosis. The total cost of these examinations was estimated with the use of Medicare reimbursement rates for 2000. RESULTS: One hundred five renal sonographic examinations were performed on 104 patients meeting all inclusion criteria. Only 1 study had positive results for hydronephrosis, which was graded as mild. Incidental findings not immediately affecting patient care and including ascites and simple renal cysts were identified in 91 patients. The estimated total cost of the examinations was $13,350.75. CONCLUSIONS: In critically ill patients with acute renal failure and no physical findings suggesting obstructive uropathy, renal sonography to evaluate for hydronephrosis is probably not indicated. This holds true regardless of patient age, sex, medical or surgical disposition, and blood urea nitrogen-creatinine ratio.


Asunto(s)
Lesión Renal Aguda/diagnóstico por imagen , Hidronefrosis/diagnóstico por imagen , Riñón/diagnóstico por imagen , Lesión Renal Aguda/economía , Lesión Renal Aguda/etiología , Adulto , Anciano , Anciano de 80 o más Años , Nitrógeno de la Urea Sanguínea , Costos y Análisis de Costo , Creatinina/sangre , Enfermedad Crítica , Femenino , Mal Uso de los Servicios de Salud , Humanos , Hidronefrosis/economía , Unidades de Cuidados Intensivos , Masculino , Persona de Mediana Edad , Ultrasonografía/economía , Estados Unidos
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