Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 33
Filter
1.
Rev. esp. med. nucl. (Ed. impr.) ; 30(2): 97-100, mar.-abr. 2011. ilus
Article in Spanish | IBECS | ID: ibc-86205

ABSTRACT

La esplenosis se define como el autotrasplante heterotópico de tejido esplénico como resultado de una rotura del bazo por trauma o cirugía. Es una condición benigna y de hallazgo casual, aunque en ciertas ocasiones las pruebas de imagen puedan orientar a malignidad simulando tumores renales, linfomas abdominales y endometriosis, entre otros. Presentamos el caso de un varón de 42 años al que, tras un estudio por dolor abdominal, se le realiza una resonancia magnética en la que se observan múltiples adenopatías en el abdomen que pueden orientar a un síndrome linfoproliferativo. Como antecedente importante, presenta esplenectomía por trauma abdominal a los 9 años. Tras varios estudios, se decide realizar una gammagrafía con hematíes desnaturalizados marcados con tecnecio-99m que muestra múltiples depósitos patológicos distribuidos por todo el abdomen e, incluso, la pelvis, siendo este hallazgo compatible con esplenosis(AU)


Splenosis is defined as the heterotopic autotransplantation of splenic tissue because of a ruptured spleen due to trauma or surgery. It is a benign and incidental finding, although imaging tests may sometimes orient toward malignancy simulating renal tumors, abdominal lymphomas, endometriosis, among other. We report the case of a 42-year old male in whom a MRI was performed after a study due to abdominal pain. Multiple enlarged lymph nodes were observed in the abdomen, suggestive of lymphoproliferative disease. As an important background, splenectomy was carried out due to abdominal trauma at age 9. After several studies, it was decided to perform a 99mTc-labeled heat-damaged red blood cell scintigraphy that showed multiple pathological deposits distributed throughout the abdomen, and even the pelvis, being consistent with splenosis(AU)


Subject(s)
Humans , Male , Adult , Splenosis , Technetium , Erythrocytes , Magnetic Resonance Imaging/instrumentation , Magnetic Resonance Imaging , Lymphoproliferative Disorders , /methods , Radiography, Thoracic/methods , Splenosis/physiopathology , Abdominal Pain/etiology , Abdominal Pain , Splenectomy/methods , Nuclear Medicine/methods
2.
Neurología (Barc., Ed. impr.) ; 26(1): 6-12, ene.-feb. 2010. tab, graf
Article in Spanish | IBECS | ID: ibc-102225

ABSTRACT

Objetivo: Evaluar el patrón de pacientes a los que se realiza monitorización prolongada Video-EEG en un centro especializado en epilepsia y valorar la utilidad de dicha técnica en la epilepsia farmacorresistente. Métodos: Se realizó el estudio y análisis prospectivo de la monitorización de 100 pacientes consecutivos con epilepsia farmacorresistente correspondientes a un solo centro. Se analizaron los datos demográficos de la serie, el tiempo trascurrido hasta la primera crisis, las maniobras de provocación de crisis y el rendimiento de la prueba (utilidad del test, cambio de actitud, mejoría en el ajuste farmacológico y mejoría quirúrgica). Se realizó un subanálisis en diferentes grupos diagnósticos.Resultados: El estudio se realizó fundamentalmente en población joven (34,4 años) y la media de horas trascurridas hasta la primera crisis fue de 30, requiriendo en la mayoría de pacientes (90%) retirar la medicación antiepiléptica. Pese a ello, no se produjo ningún caso de status epiléptico. La utilidad del test fue elevada en todos los grupos permitiendo cambiar el manejo de los pacientes en un 65%, lo cual se tradujo en mejorías tanto a nivel farmacológico como quirúrgico.Conclusión: La monitorización prolongada Video-EEG es una técnica adecuada para el estudio de pacientes con una epilepsia farmacorresistente, siendo el mayor problema en nuestro medio su difícil accesibilidad (AU)


Objective: To evaluate the characteristics of patients on whom long-term Video-EEG monitoring is performed in a specialist centre and to assess its suitability to study refractory epilepsy patients. Methods: A prospective analysis and study of Video-EEG monitoring was performed in a series of 100 refractory epilepsy patients from a single centre. The analysis included demographic data, the time until the first seizure, the methods used to provoke seizures, and the outcome (usefulness, change in the management, pharmacological and surgical improvement). A subgroup analysis based on diagnosis was performed.Results: The study was performed mainly on young people (mean 34.4 years) and the first seizure appeared in a mean of 30hours, requiring most of the patients to withdraw the medication. Nevertheless, there were no cases of status epilepticus. The usefulness of the test was high in all the groups. The management was changed in 65% of the patients with pharmacological and surgical improvement. Conclusion: Long-term Video-EEG monitoring is a suitable test to study refractory epilepsy patients. The main problem in our country is accesibility (AU)


Subject(s)
Humans , Male , Female , Young Adult , Adult , Monitoring, Physiologic/methods , Electroencephalography/methods , Epilepsy/complications , Drug Resistance , Anticonvulsants/therapeutic use , Prospective Studies , Seizures/physiopathology
3.
Rev Esp Med Nucl ; 30(2): 97-100, 2011.
Article in Spanish | MEDLINE | ID: mdl-20570413

ABSTRACT

Splenosis is defined as the heterotopic autotransplantation of splenic tissue because of a ruptured spleen due to trauma or surgery. It is a benign and incidental finding, although imaging tests may sometimes orient toward malignancy simulating renal tumors, abdominal lymphomas, endometriosis, among other. We report the case of a 42-year old male in whom a MRI was performed after a study due to abdominal pain. Multiple enlarged lymph nodes were observed in the abdomen, suggestive of lymphoproliferative disease. As an important background, splenectomy was carried out due to abdominal trauma at age 9. After several studies, it was decided to perform a (99m)Tc-labeled heat-damaged red blood cell scintigraphy that showed multiple pathological deposits distributed throughout the abdomen, and even the pelvis, being consistent with splenosis.


Subject(s)
Splenosis/diagnostic imaging , Abdominal Injuries/surgery , Abdominal Pain/etiology , Adult , Bromhexine , Cholestasis/diagnosis , Diagnosis, Differential , Erythrocytes , Humans , Incidental Findings , Lymphatic Metastasis , Lymphoproliferative Disorders/diagnosis , Magnetic Resonance Imaging , Male , Postoperative Complications/diagnostic imaging , Postoperative Complications/etiology , Postoperative Complications/pathology , Radiography , Radionuclide Imaging , Radiopharmaceuticals , Spleen/injuries , Spleen/surgery , Splenectomy , Splenosis/epidemiology , Splenosis/etiology , Splenosis/pathology , Technetium , Time Factors
4.
Neurologia ; 26(1): 6-12, 2011.
Article in English, Spanish | MEDLINE | ID: mdl-21163203

ABSTRACT

OBJECTIVE: To evaluate the characteristics of patients on whom long-term Video-EEG monitoring is performed in a specialist centre and to assess its suitability to study refractory epilepsy patients. METHODS: A prospective analysis and study of Video-EEG monitoring was performed in a series of 100 refractory epilepsy patients from a single centre. The analysis included demographic data, the time until the first seizure, the methods used to provoke seizures, and the outcome (usefulness, change in the management, pharmacological and surgical improvement). A subgroup analysis based on diagnosis was performed. RESULTS: The study was performed mainly on young people (mean 34.4 years) and the first seizure appeared in a mean of 30hours, requiring most of the patients to withdraw the medication. Nevertheless, there were no cases of status epilepticus. The usefulness of the test was high in all the groups. The management was changed in 65% of the patients with pharmacological and surgical improvement. CONCLUSION: Long-term Video-EEG monitoring is a suitable test to study refractory epilepsy patients. The main problem in our country is accesibility.


Subject(s)
Drug Resistance , Electroencephalography/methods , Epilepsy/drug therapy , Epilepsy/physiopathology , Video Recording/methods , Adolescent , Adult , Aged , Anticonvulsants/therapeutic use , Child , Epilepsy/diagnosis , Female , Humans , Male , Middle Aged , Prospective Studies , Seizures/drug therapy , Seizures/physiopathology , Young Adult
6.
Rev Esp Med Nucl ; 28(5): 242-5, 2009.
Article in Spanish | MEDLINE | ID: mdl-19922841

ABSTRACT

We present a clinical case of a 54-year-old woman that was admitted in our hospital with the diagnosis of fever of unknown origin. All the laboratory tests and imaging techniques did not manage to establish the fever's aetiology until a (67)Ga-citrate scan was performed and kidney uptake was observed, which lead to the clinical suspicion of drug-induced interstitial nephritis. The renal biopsy confirmed the diagnosis. This finding allowed corticoid therapy and cure.


Subject(s)
Citrates , Fever of Unknown Origin/etiology , Gallium , Nephritis, Interstitial/complications , Nephritis, Interstitial/diagnostic imaging , Radiopharmaceuticals , Female , Humans , Middle Aged , Radionuclide Imaging
8.
Rev. esp. med. nucl. (Ed. impr.) ; 28(5): 242-245, sept.-oct. 2009.
Article in Spanish | IBECS | ID: ibc-73594

ABSTRACT

Exponemos el caso de una paciente mujer de 54 años que ingresó en nuestro hospital para estudio de fiebre de origen desconocido.Todas las pruebas de laboratorio y de imagen no lograron establecer la causa de la fiebre y, al realizar una gammagrafía con 67Ga-citrato, se objetivó captación patológica en los riñones, lo que llevó a la sospecha clínica de nefritis intersticial inducida por medicamentos. La biopsia renal confirmó el diagnóstico. Este hallazgo permitió el tratamiento con corticoides y la curación de la enferma(AU)


We present a clinical case of a 54-year-old woman that was admitted in our hospital with the diagnosis of fever of unknown origin.All the laboratory tests and imaging techniques did not manage to establish the fever's aetiology until a 67Ga-citrate scan was performed and kidney uptake was observed, which lead to the clinical suspicion of drug-induced interstitial nephritis. The renal biopsy confirmed the diagnosis. This finding allowed corticoid therapy and cure(AU)


Subject(s)
Humans , Female , Middle Aged , Nephritis, Interstitial , Fever of Unknown Origin/complications , Fever of Unknown Origin/etiology , Biopsy/methods , Nephritis, Interstitial/complications , Nephritis, Interstitial/diagnosis , Nephritis, Interstitial , Fever of Unknown Origin
9.
Neurología (Barc., Ed. impr.) ; 23(9): 566-574, nov. 2008. tab
Article in Spanish | IBECS | ID: ibc-76052

ABSTRACT

Introducción. El concepto de parkinsonismo vascular(PV) ha evolucionado desde su introducción por Critchley.Se establecen las relaciones entre las manifestaciones clínicasy neuroimagen de pacientes con PV para determinar lautilidad de la SPECT en su diagnóstico.Material y métodos. Estudio retrospectivo de pacientescon sospecha de PV según los criterios de Ziljmans 2004.Resultados. Se incluyeron 22 pacientes. El factor deriesgo más frecuente fue la HTA. Las manifestaciones másfrecuentes fueron: bradicinesia, seguida por trastorno de lamarcha. La respuesta a levodopa se relacionó con clínica enmiembros inferiores (p=0,014). Las alteraciones en la resonanciamagnética más frecuentes fueron: atrofia/dilataciónventricular seguida por lesiones de sustancia blanca. Se relacionóla escala de Hachinski con el inicio agudo (p=0,022) ycon el infarto territorial (p=0,039), y la de Winikates con lesionesde sustancia blanca paraventricular-subcortical (p=0,036),y ambas con el sexo (varón) (p=0,031) y con el antecedente deictus (p=0,022). Se asoció la alteración de la marcha con las lesionesde sustancia blanca paraventricular (p=0,043) y otrasmanifestaciones con lesiones en tronco (p=0,020). El temblorse asoció con la afectación bilateral de putámenes en elSPECT (p=0,039), la lesión estratégica con la afectación deputamen (p=0,028) y las lesiones de sustancia blanca periventricularcon el tipo 1 y 2 de SPECT (p=0,045). No huborelaciones significativas de la SPECT con la respuesta a levodopani con las escalas.Discusión. Las distintas relaciones entre clínica, escalasy neuroimagen muestran la complejidad del tema y la necesidadde todas ellas para el diagnóstico del PV (AU)


Introduction. The concept of vascular parkinsonism(VP) has evolved since it was introduced by Critchley. Therelationships between the clinical manifestations and neuroimaginingof patients with VP to determine the utility ofSPECT in its diagnosis have been established.Material and methods. Retrospective study of patientswith suspicion of VP according to Ziljmans 2004criteria.Results. A total of 22 patients were included. Themost frequent risk factor was AHT. The most frequentmanifestations were: bradykinesis, followed by gait disorder.Response to L-dopa was related with symptomsin lower limbs (p=0.014). The most frequent alterationson the magnetic resonance imaging were: atrophy withventricular dilation followed by white matter lesions. TheHachinski scale was related with acute onset (p=0.022) andterritorial infarction (p=0.039), and the Winikates with subcortical-paraventricular white matter lesions (p=0.036), andboth with gender (male) (p=0.031), and stroke background(p=0.022). Alteration in gait was associated with paraventricularwhite matter lesions (p = 0.043), and othermanifestations with lesions in the medulla (p=0,020). Tremorwas associated with bilateral involvement of putamensin SPECT (p=0.039), strategic lesion with putameninvolvement (p = 0.028) and lesions of periventricularwhite matter lesions with SPECT type 1 and 2 (p=0.045).There were no significant relationships of the SPECT withresponse to L-dopa or with the scales.Discussion. The different relationships betweensymptoms, scales and neuroimagin show the complexityof the subject and the need to use all of them in thediagnosis of VP (AU)


Subject(s)
Humans , Male , Female , Tomography, Emission-Computed, Single-Photon/methods , Parkinsonian Disorders/diagnosis , Radiopharmaceuticals , Tomography, Emission-Computed, Single-Photon , Parkinson Disease, Secondary/diagnosis , Levodopa/administration & dosage , Levodopa/pharmacology , Radiopharmaceuticals/pharmacology
10.
Neurologia ; 23(9): 566-74, 2008 Nov.
Article in Spanish | MEDLINE | ID: mdl-18925439

ABSTRACT

INTRODUCTION: The concept of vascular parkinsonism (VP) has evolved since it was introduced by Critchley. The relationships between the clinical manifestations and neuroimagining of patients with VP to determine the utility of SPECT in its diagnosis have been established. MATERIAL AND METHODS: Retrospective study of patients with suspicion of VP according to Ziljmans 2004 criteria. RESULTS: A total of 22 patients were included. The most frequent risk factor was AHT. The most frequent manifestations were: bradykinesis, followed by gait disorder. Response to L-dopa was related with symptoms in lower limbs (p=0.014). The most frequent alterations on the magnetic resonance imaging were: atrophy with ventricular dilation followed by white matter lesions. The Hachinski scale was related with acute onset (p=0.022) and territorial infarction (p=0.039), and the Winikates with subcortical- paraventricular white matter lesions (p=0.036), and both with gender (male) (p=0.031), and stroke background (p=0.022). Alteration in gait was associated with paraventricular white matter lesions (p = 0.043), and other manifestations with lesions in the medulla (p=0,020). Tremor was associated with bilateral involvement of putamens in SPECT (p=0.039), strategic lesion with putamen involvement (p = 0.028) and lesions of periventricular white matter lesions with SPECT type 1 and 2 (p=0.045). There were no significant relationships of the SPECT with response to L-dopa or with the scales. Discussion. The different relationships between symptoms, scales and neuroimagin show the complexity of the subject and the need to use all of them in the diagnosis of VP.


Subject(s)
Iodine Radioisotopes , Nortropanes , Parkinson Disease/diagnostic imaging , Parkinson Disease/diagnosis , Tomography, Emission-Computed, Single-Photon/methods , Vascular Diseases/diagnostic imaging , Vascular Diseases/diagnosis , Humans , Magnetic Resonance Imaging , Male , Parkinson Disease/pathology , Retrospective Studies , Vascular Diseases/pathology
11.
Article in Spanish | LILACS | ID: lil-385333

ABSTRACT

Existen muy pocos estudios que relacionen la Fibromialgia reumática (FR) con el Rastreo Óseo Isotópico (RO). El objetivo de este trabajo es evaluar el valor del RO en el diagnóstico de la FR e intentar encontrar un patrón óseo gammagráfico que permita el diagnóstico de esta patología, al igual que sucede con otras enfermedades osteoarticulares reumáticas, ayudando también así en el diagnóstico diferencial con éstas. Se han estudiado 19 mujeres (edad 24-69 años). 14 de ellas presentaban diagnóstico clínico de FR y 5 sospecha clínica. A todas ellas se les realizó un gran número de pruebas diagnósticas: analíticas sanguíneas, Radiología convencional, Electrocardiogramas, Electroencefalogramas, Electromiografia, Ecografía, Tomografía computerizada, Resonancia magnética y RO. En todos los RO se observaron incrementos anormales de captación de intensidad variable, de localización difusa o puntual y a nivel poliarticular, además de los hallazgos ya conocidos por la patología osteoarticular concomitante de las pacientes. No se observó la presencia de fase vascular positiva en ningún caso a pesar de ser zonas dolorosas en la exploración clínica. No se observó relación entre la localización e intensidad de captación del radiofármaco y la presencia clínica de dolor.Pensamos que los pacientes con FR podrían presentar un patrón gammagráfico variable en cuanto a localización e intensidad de captación, de tipo poliarticular en fase tardía.


Subject(s)
Humans , Fibromyalgia , Radionuclide Imaging/methods , Bone Diseases , Tomography, Emission-Computed/methods
12.
Rev Esp Med Nucl ; 22(6): 367-75, 2003 Nov.
Article in Spanish | MEDLINE | ID: mdl-14588229

ABSTRACT

Langerhans cell histiocytosis (LCH) is a granulomatous disease which can involve multiples sites of the body. Diagnostic imaging is of utmost importance in the management of these patients. Up to now radiographic skeletal survey and bone scintigraphy (BS) have been used to assess bone involvement (both with low specificity). Magnetic resonance imaging (MRI) and CT have been used to assess visceral involvement but with the limitation that they cannot give information about the functional status. Recently somatostatin receptor scintigraphy (SSRS) has been proposed to detect active lesions and to monitor response to treatment. The aim of this study is to assess bone and somatostatin receptor scintigraphy in the detection of bone involvement in LCH in children. Twenty scintigraphies (12 SSRS and 8 BS) were performed in seven patients (3 girls and 4 boys) aged at diagnosis: 18 month-12 years (mean age 6 years). The findings obtained in the scintigraphies were compared with clinical evolution and other imaging techniques. Bone scintigraphy detected all the LCH bone lesions, and discovered one unknown lesion. SSRS scintigraphy visualised the active lesions in 3 patients (clinical and other imaging techniques were also positive). SSRS was negative in one patient classified as disease free and another in clinical remission. SSRS detected 2 new unknown bone lesions, but could not detect LCH bone lesions confirmed in other imaging techniques in 2 patients. Somatostatin receptor and Bone scintigraphy can be used to detect active LCH bone lesions in children and can help to monitor response to treatment. Further studies with more patients are needed to confirm the diagnostic usefulness of these techniques.


Subject(s)
Bone and Bones/diagnostic imaging , Histiocytosis, Langerhans-Cell/diagnostic imaging , Receptors, Somatostatin/analysis , Biomarkers , Child , Child, Preschool , False Negative Reactions , Female , Histiocytosis, Langerhans-Cell/metabolism , Humans , Infant , Magnetic Resonance Imaging , Male , Radionuclide Imaging , Sensitivity and Specificity , Tomography, X-Ray Computed
13.
Rev. esp. med. nucl. (Ed. impr.) ; 22(6): 367-375, nov. 2003.
Article in Es | IBECS | ID: ibc-27456

ABSTRACT

La histiocitosis de células de Langerhans (HCL) es una enfermedad granulomatosa que puede afectar a múltiples lugares del cuerpo. El diagnóstico por imagen es de gran importancia en el manejo de estos pacientes. Hasta ahora, la radiografía del esqueleto y la gammagrafía ósea (GO) se han empleado para la valoración de la afectación ósea (ambos con baja especificidad). La resonancia magnética (RM) y la tomografía computarizada (TC) se han empleado en la valoración de la afectación visceral pero con la limitación de que no pueden ofrecer información sobre el estado funcional de las lesiones. Recientemente se ha propuesto la gammagrafía de receptores de somatostatina (GRS) para detectar lesiones activas y monitorizar la respuesta al tratamiento. El objetivo de este estudio es estudiar el valor de la gammagrafía ósea y de receptores de la somatostatina en la detección de la afectación ósea en la HCL.Se realizaron 20 estudios gammagráficos (12 GRS y 8 GO) a 7 pacientes (3 mujeres y 4 varones) de edades al diagnóstico comprendidas entre 18 meses y 12 años (edad media 6 años).Los hallazgos obtenidos en los estudios gammagráficos se compararon con la evolución clínica y otras técnicas de imagen.La gammagrafía ósea detectó todas las lesiones óseas de HCL y descubrió una lesión desconocida. La GRS visualizó las lesiones activas en 3 pacientes (con clínica y otras técnicas de imagen también positivas). La GRS fue negativa en un paciente libre de enfermedad y otro con remisión clínica. La GRS detectó en dos ocasiones lesiones nuevas desconocidas, pero no pudo detectar las lesiones óseas de HCL confirmadas por otras técnicas de imagen en 2 pacientes.La GRS y la GO pueden ser útiles en niños con HCL y puede ayudar en la monitorización de la respuesta al tratamiento. Se necesitan más estudios con mayor número de pacientes para confirmar la utilidad diagnóstica de estas técnicas. (AU)


Subject(s)
Child, Preschool , Child , Male , Infant , Female , Humans , Sensitivity and Specificity , Tomography, X-Ray Computed , Biomarkers , Receptors, Somatostatin , Bone and Bones , Histiocytosis, Langerhans-Cell , Magnetic Resonance Imaging , False Negative Reactions
14.
Q J Nucl Med ; 47(2): 101-8, 2003 Jun.
Article in English | MEDLINE | ID: mdl-12865870

ABSTRACT

AIM: The aim of this study is to assess the clinical impact of gallium-67 scintigraphy, before and after treatment, in patients with Hodgkin's disease, and to compare the overall survival between the patients whose gallium studies after treatment were negative and those whose studies remained positive. METHODS: We have studied 75 patients (40 women, 35 men) with Hodgkin's disease. All the patients underwent (67)Ga scintigraphy at the moment of the diagnosis (basal study) and in the case that basal study was positive (abnormal hyper-uptake focus) we performed follow-up studies after the treatment. We have calculated the overall survival among patients whose studies after treatment were negative (1(st) group) and those whose studies remained positive (2(nd) group) and between patients whose studies were negative at diagnosis (3(rd) group). RESULTS: Gallium scintigraphy was positive at diagnosis in 47 patients (62.6%). In 39 of them we were able to perform the follow-up study after treatment. The follow-up study was negative in 31 patients while in 8 patients the gallium scintigraphy remained positive. The overall survival was significantly higher (p<0.001) in the 1(st) group compared with the 2(nd) group. The overall survival was higher in the 1(st) group compared with the 3(rd) but statistic significance level was not reached. CONCLUSION: Our data suggest that: 1) in Hodgkin's disease (67)Ga scintigraphy is useful to establish the diagnosis of complete remission; 2) if the gallium scan remains positive after treatment, the prognosis of patients is worse than the prognosis of patients with a negative scan.


Subject(s)
Citrates , Gallium , Hodgkin Disease/diagnostic imaging , Hodgkin Disease/therapy , Adolescent , Adult , Aged , Female , Hodgkin Disease/epidemiology , Hodgkin Disease/pathology , Humans , Male , Middle Aged , Prognosis , Radionuclide Imaging , Radiopharmaceuticals , Reproducibility of Results , Retrospective Studies , Sensitivity and Specificity , Spain/epidemiology , Survival Analysis , Treatment Outcome
15.
Rev Esp Med Nucl ; 21(6): 426-32, 2002.
Article in Spanish | MEDLINE | ID: mdl-12425890

ABSTRACT

This work tries to provide the clinicians an objective tool that can contribute to the assessment of the results of radioisotopic synoviorthesis (RS). This study aims to assess the value of the quantification of bone scintigraphy in blood pool and late phase of the affected joints treated with 90Y silicate, in order to observe the clinical improvement experienced by most of these patients. A total of 69 bone scintigraphies (BS) in blood pool and late phase have been quantified. They belonged to 23 patients who were treated with RS with 90Y. The first scintigraphy study was performed before the treatment, the second and the third ones were performed 2 and 6 months after treatment. In each BS we quantified the index: counts per pixel of healthy / affected joint. We also have calculated the fraction in the late phase: counts per pixel of healthy bone / counts per pixel of affected and healthy joint. For the comparative statistical analysis of the results we used the Student's t test. We considered statistical significance when p < 0.05. All the patients presented clinical improvement. If we compare the index obtained in BS 2 months after treatment and pre-treatment we find statistical significance (p < 0.05) in the increase of index in the anterior view and late phase. If we compare the index obtained in BS 6 month after treatment and pre-treatment, we find a statistically significant increase in the anterior (p < 0.01) and posterior (p < 0.05) view of the blood pool phase and the anterior view of late phase (p < 0.01). The fraction counts per pixel of healthy bone / counts per pixel of affected and healthy joint did not present a significant increase in any BS control (2 and 6 months). We recommend quantification using the index (counts per pixel healthy / affected joint ) proposed in this work, because it is easy to perform, cheap and reliable in the follow-up of patients treated with RS.


Subject(s)
Bone and Bones/diagnostic imaging , Joint Diseases/radiotherapy , Joints/diagnostic imaging , Radiopharmaceuticals/therapeutic use , Silicates/therapeutic use , Yttrium Radioisotopes/therapeutic use , Yttrium/therapeutic use , Adolescent , Adult , Aged , Arthritis, Reactive/complications , Arthritis, Rheumatoid/radiotherapy , Chondromatosis, Synovial/radiotherapy , Female , Follow-Up Studies , Hemarthrosis/etiology , Hemarthrosis/radiotherapy , Hemophilia A/complications , Humans , Joint Diseases/diagnostic imaging , Male , Middle Aged , Radionuclide Imaging , Radiopharmaceuticals/pharmacokinetics , Synovial Membrane/blood supply , Synovial Membrane/diagnostic imaging , Synovitis, Pigmented Villonodular/radiotherapy , Treatment Outcome , Yttrium Radioisotopes/pharmacokinetics
16.
Rev. esp. med. nucl. (Ed. impr.) ; 21(6): 426-432, nov. 2002.
Article in Es | IBECS | ID: ibc-17460

ABSTRACT

Este trabajo intenta aportar una herramienta objetiva que pueda contribuir a la valoración del resultado de la sinoviortesis radioisotópicas (SR). El objetivo de este estudio es comprobar el valor de la cuantificación de la gammagrafía ósea en fase precoz y tardía de las articulaciones sometidas a SR con 90Y silicato, con el fin de objetivar la mejoría clínica que experimentan la mayoría de estos pacientes. Se han cuantificado 69 gammagrafías óseas (GO) en fase precoz y tardía pertenecientes a 23 pacientes a los que se les practicó SR con 90Y. El primer estudio gammagráfico se realizó previo al tratamiento, el segundo y tercer estudio se realizaron a los dos y seis meses. En cada GO cuantificamos el índice: cuentas por píxel de la articulación sana / patológica. También calculamos, en la fase tardía, el cociente cuentas por píxel del hueso sano / cuentas por píxel de la articulación patológica y sana. Para el análisis estadístico comparativo de los resultados de la cuantificación utilizamos el test de la t de Student para datos apareados. El nivel de significación estadística se consideró a partir de p < 0,05. Todos los pacientes experimentaron una mejoría clínica. Si comparamos los índices obtenidos en las GO dos meses posttratamiento y pre-tratamiento, encontramos significación estadística (p < 0,05) en el aumento de los índices para la proyección anterior y en fase tardía. Si comparamos los índices obtenidos en las GO seis meses post-tratamiento y pretratamiento, encontramos una aumento de los índices estadísticamente significativo en las proyecciones anterior (p < 0,01) y posterior (p < 0,05) de la fase precoz y en la proyección anterior de la fase tardía (p < 0,01). El cociente cuentas por píxel del hueso sano / cuentas por píxel de la articulación patológica y sana no experimentó un incremento significativo en ninguno de los controles (dos y seis meses). Recomendamos el uso del método de cuantificación de los índices (cuentas por píxel articulación sana / patológica) propuesto en este trabajo, por tratarse de un método sencillo de realizar, de bajo coste y fiable en el seguimiento de pacientes sometidos a SR (AU)


Subject(s)
Middle Aged , Adolescent , Adult , Aged , Male , Female , Humans , Synovitis, Pigmented Villonodular , Synovial Membrane , Yttrium Radioisotopes , Chondromatosis, Synovial , Yttrium , Radiopharmaceuticals , Treatment Outcome , Silicates , Bone and Bones , Arthritis, Rheumatoid , Hemophilia A , Joints , Joint Diseases , Follow-Up Studies , Hemarthrosis , Arthritis, Reactive
17.
Rev Esp Med Nucl ; 21(4): 281-5, 2002 Jul.
Article in Spanish | MEDLINE | ID: mdl-12206741

ABSTRACT

We have studied three women (66,72 and 72 years) with Parkinson's disease of 11, 6 and 21 years of evolution and drug-resistant severe depressive episodes treated with electroconvulsive therapy (ECT). We have performed a brain SPECT (99mTc-HMPAO) before and after the ECT. The clinical improvement of the severe depressive episodes were measured using the Hamilton score. The first patient did not experience any clinical improvement (Hamilton score 42 to 42). In this patient the brain SPECT before treatment presented a reduced perfusion in the posterior parietal region, anterior cingulate cortex and medial frontal and parietal cortex. After the treatment, the brain SPECT did not present significant variations. The second patient presented a moderate clinical improvement (Hamilton score 46 to 36) and also presented moderate improvement in the neurological symptoms. The brain SPECT before the treatment showed reduced perfusion in the left temporal cortex and medium-posterior parietal cortex. After the treatment, it also did not reflect significant variations. The third patient experienced a very good response to the ECT sessions (Hamilton score 45 to 10) and also an improvement regarding the neurological symptoms. This patient presented a reduced perfusion in the medium-posterior parietal regions in the brain SPECT performed before the treatment; these regions presented a moderate improvement in the brain SPECT performed after the treatment. The patient who presented a significant neurological and psychiatric improvement also presented an improvement in the perfusion of the decreased areas in the brain SPECT and showed fewer alterations in the baseline brain SPECT compared with the others. The brain SPECT could have a prognostic (and confirmation) role regarding clinical improvement induced by ECT in resistant depression in Parkinson's disease. ECT is an alternative in treatment of severe depressive drug-resistant episodes associated to the Parkinson's disease.


Subject(s)
Brain/diagnostic imaging , Depressive Disorder/diagnostic imaging , Electroconvulsive Therapy , Parkinson Disease/diagnostic imaging , Tomography, Emission-Computed, Single-Photon , Aged , Antidepressive Agents/therapeutic use , Brain/blood supply , Cerebral Cortex/blood supply , Cerebral Cortex/diagnostic imaging , Cerebrovascular Circulation , Depressive Disorder/drug therapy , Depressive Disorder/etiology , Depressive Disorder/therapy , Drug Resistance , Female , Follow-Up Studies , Humans , Parkinson Disease/psychology , Prognosis , Treatment Outcome
18.
Rev. esp. med. nucl. (Ed. impr.) ; 21(4): 281-285, jul. 2002.
Article in Es | IBECS | ID: ibc-17440

ABSTRACT

Hemos estudiado tres mujeres de 62, 72 y 72 años con enfermedad de Parkinson de 11, 6 y 21 años de evolución y episodios depresivos graves fármaco-resistentes, tratados con terapia electro-convulsiva (TEC). La mejoría clínica de la depresión se midió utilizando la escala de Hamilton. Hemos realizado un SPECT cerebral (99mTcHMPAO) antes y después de la realización de la TEC. La primera paciente no experimentó ninguna mejoría clínica estable (puntuación en la escala de Hamilton de 42 a 42). En esta paciente el SPECT cerebral de perfusión antes del tratamiento presentaba disminución de la perfusión en áreas parietales posteriores, córtex cingular anterior y medial, córtex frontal y parietal. Tras el tratamiento el SPECT no sufrió variaciones significativas. La segunda paciente presentó una mejoría clínica moderada (Hamilton de 46 a 36) y en la sintomatología neurológica. El SPECT cerebral previo al tratamiento mostraba perfusión reducida en el córtex temporal izquierdo y parietal medio-posterior. Tras el tratamiento no experimentó cambios significativos. La tercera paciente respondió de manera muy satisfactoria a la TEC (Hamilton de 45 a 10 e importante mejoría de los síntomas neurológicos). Esta paciente presentaba una perfusión disminuida en las regiones parietales medias y posteriores en el estudio previo al tratamiento. Estas regiones presentaron una mejoría moderada en el estudio posterior. La paciente que presentó mejoría neurológica y psiquiátrica significativa, presentó también una mejoría en la perfusión de las áreas más afectadas en el SPECT cerebral previo y además mostraba menos alteraciones en el estudio basal que las otras pacientes. El SPECT cerebral podría tener un papel pronóstico (y de confirmación) respecto a la mejoría clínica inducida por TEC en la depresión resistente en la enfermedad de Parkinson. La TEC es una alternativa en el tratamiento de los episodios depresivos graves fármaco-resistentes asociados a la enfermedad de Parkinson (AU)


Subject(s)
Aged , Female , Humans , Tomography, Emission-Computed, Single-Photon , Electroconvulsive Therapy , Treatment Outcome , Parkinson Disease , Prognosis , Antidepressive Agents , Cerebral Cortex , Cerebrovascular Circulation , Depressive Disorder , Drug Resistance , Follow-Up Studies , Telencephalon
19.
Rev. esp. med. nucl. (Ed. impr.) ; 20(7): 544-546, dic. 2001.
Article in Es | IBECS | ID: ibc-766

ABSTRACT

El histiocitoma fibroso maligno (HFM) es el tumor maligno de tejidos blandos más común en edades tardías. Se ha descrito que el HFM presenta avidez por el 67 Ga y tan solo un 38 por ciento de estos por el 99mTc-MDP, aunque pocos casos clínicos se han publicado. Presentamos el caso de un varón de 73 años con un HFM que presentó en la gammagrafía con 99mTc-MDP captación más intensa en fase vascular, siendo uno de los pocos casos descritos de HFM primario que no invaden hueso captadores de 99mTcMDP. En el presente trabajo además se revisan algunos de los casos de HFM publicados y las diferentes técnicas utilizadas para su diagnóstico y seguimiento. (AU)


Subject(s)
Aged , Male , Humans , Technetium Tc 99m Medronate , Radiopharmaceuticals , Neoplasm Invasiveness , Arm , Soft Tissue Neoplasms , Histiocytoma, Benign Fibrous
20.
Rev Esp Med Nucl ; 20(7): 544-6, 2001 Dec.
Article in Spanish | MEDLINE | ID: mdl-11709140

ABSTRACT

Malignant fibrous histiocytoma (MFH) is the most common soft tissue malignant tumour in late adult life. MFH has been mentioned to have avid uptake of 67Ga citrate, and only 38% is uptake of 99mTc-MDP, although few cases of MFH have been reported. We present the case of a 73 years old male patient with MFH. In the blood pool phase of the bone scintigraphy, MFH was presented as an intense hyperactive lesion. In the late phase the tumor is one of the few MFH described to have avid uptake for 99mTc-MDP. In this work we also review some cases of MFH described and the different techniques used in the diagnosis and follow-up of these tumours.


Subject(s)
Histiocytoma, Benign Fibrous/diagnostic imaging , Radiopharmaceuticals , Soft Tissue Neoplasms/diagnostic imaging , Technetium Tc 99m Medronate , Aged , Arm , Histiocytoma, Benign Fibrous/pathology , Histiocytoma, Benign Fibrous/surgery , Humans , Male , Neoplasm Invasiveness , Radionuclide Imaging , Radiopharmaceuticals/pharmacokinetics , Soft Tissue Neoplasms/pathology , Soft Tissue Neoplasms/surgery , Technetium Tc 99m Medronate/pharmacokinetics
SELECTION OF CITATIONS
SEARCH DETAIL
...