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1.
Gynecol Oncol Rep ; 17: 89-92, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27536721

RESUMO

This case series describes the use of pelvic radiotherapy (RT) and MRI-based intracavitary brachytherapy (ICBT) for patients with small volume, early-stage, primary vaginal cancer. A customized pelvic MRI protocol with a vaginal cylinder in place (MRVC) was used to measure disease extent and tumor thickness (defined as distance from lateral/apical margin of tumor to cylinder surface) at time of diagnosis. Non-bulky tumors with initial (pre-RT) thickness ≤ 2 cm from the cylinder surface received pelvic RT followed by ICBT. Ten patients with FIGO stage I-II primary vaginal cancer treated with pelvic RT +/- cisplatin and ICBT at our institution between 1998 and 2008 were included. Initial tumor thickness measured on MRVC ranged from 0 to 2 cm. Initial tumor volume ranged from 0 to 9.8 cm(3). Mean pelvic RT dose was 45 Gy. At the time of ICBT, 60% of patients had a complete response (cR) and 40% had a partial response (pR). No patients with a cR had a recurrence whereas one patient with a pR had a local recurrence following ICBT. For the entire cohort, the median follow-up time was 59.9 months (range: 15-153). The estimated 5-year overall survival, disease-specific survival, and local failure-free survival were 67%, 80%, and 90%, respectively. Among survivors, there were no late grade 3-4 toxicities. In this series of patients with small primary early-stage vaginal tumors, long term clinical outcomes were acceptable following RT and MRI-based ICBT, especially among those with a cR at time of brachytherapy.

2.
J Ultrasound Med ; 35(7): 1445-56, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27229131

RESUMO

OBJECTIVES: To compare older and newer magnetic resonance imaging (MRI) criteria for placental invasion and to compare the sensitivity, specificity, and accuracy of MRI and sonography in determining the depth of placental invasion. METHODS: Forty pregnant patients at high risk for morbidly adherent placenta based on prenatal sonography underwent MRI evaluations. Two reviewers, who were blinded to the original MRI and sonographic interpretations, clinical history, and obstetric/pathologic findings, reviewed the MRI examinations. The MRI and sonographic scans were analyzed for the presence and depth of invasion. The MRI scans were tabulated for the presence of dark intraplacental T2 bands, bulging of the myometrium, increased vascularity, and indistinct myometrium, loss of the dark T2 myometrial/placental interface, and a thin myometrium. The obstetric/pathologic results served as the reference standards. RESULTS: Eighteen of 40 patients had a morbidly invasive placenta. The sensitivity, specificity, and accuracy of MRI and sonography were not significantly different. The accuracy rates for determining the depth of placental invasion by readers 1 and 2 were 0.65 and 0.55, respectively (P > .05). According to the Cohen κ statistic, there was a good inter-reader agreement between the MRI readers in assessing the depth of placental invasion (κ = 0.45). The features most commonly seen were dark T2 bands, bulging of the uterus, and loss of the dark T2 interface, which were all associated with the presence of placental invasion. CONCLUSIONS: The diagnosis of placental invasion remains challenging on sonography and MRI, which perform similarly. The presence of 2 or more criteria adds specificity to the diagnosis of placental invasion on MRI.


Assuntos
Imageamento por Ressonância Magnética/métodos , Placenta Acreta/diagnóstico por imagem , Ultrassonografia Pré-Natal/métodos , Adulto , Feminino , Humanos , Placenta/diagnóstico por imagem , Gravidez , Reprodutibilidade dos Testes , Estudos Retrospectivos , Sensibilidade e Especificidade , Índice de Gravidade de Doença
3.
J Comput Assist Tomogr ; 39(6): 896-900, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26466105

RESUMO

OBJECTIVE: The aim of this study was to evaluate the ability of magnetic resonance imaging (MRI) to identify pelvic adhesions. DESIGN: This was an institutional review board-approved retrospective analysis. METHODS: Ninety-nine patients met inclusion criteria and constituted our study population. INCLUSION CRITERIA: patients who underwent MRI and subsequent gynecologic abdominal surgery within 6 months after MRI. All imaging and operative reports were reviewed for the presence of pelvic adhesions by independent and blinded specialists. The findings were compared to calculate MRI sensitivity, specificity, positive predictive value, negative predictive value, and accuracy in the evaluation of pelvic adhesions. RESULTS: The specificity of MRI in the detection of pelvic adhesions was greater than 90% in all locations with the exception of the posterior cul-de-sac. Accuracy was highest in the anterior cul-de-sac at 88%. The positive predictive value was greater than 85% for prediction of non-location-specific adhesions. CONCLUSIONS: Magnetic resonance imaging is very specific in the evaluation of pelvic adhesions.


Assuntos
Doenças dos Genitais Femininos/diagnóstico , Cuidados Intraoperatórios/métodos , Imageamento por Ressonância Magnética , Pelve/patologia , Adolescente , Adulto , Criança , Feminino , Humanos , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Estudos Retrospectivos , Sensibilidade e Especificidade , Aderências Teciduais , Adulto Jovem
4.
AJR Am J Roentgenol ; 205(4): 912-21, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26397344

RESUMO

OBJECTIVE: The purpose of this article is to review the clinical, imaging, and pathologic features of leiomyoma variants. CONCLUSION: Fortunately, most of these variants are rare and have a benign natural history, given currently there are no significant series to establish definitive clinical or imaging findings that can reliably distinguish among them. Although there are some suggestive features, the diagnosis of a leiomyoma variant is usually made postoperatively at pathologic examination.


Assuntos
Diagnóstico por Imagem , Leiomioma/patologia , Neoplasias Uterinas/patologia , Diagnóstico Diferencial , Feminino , Humanos
5.
Int J Gynecol Cancer ; 25(5): 792-7, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25790042

RESUMO

BACKGROUND: Mature cystic teratoma (MCT) is the most common germ cell tumor. It accounts for 10% to 20% of all ovarian masses. The likelihood of malignancy arising from within an MCT is low, and prognosis is poor. METHODS: A single-institution retrospective chart review was completed of all cases of MCT from 2004 to 2012. Multiple variables were examined including procedure performed, residual disease after surgery, surgical stage, histologic type, site of primary disease, date of recurrence, whether or not adjuvant chemotherapy was given, and whether or not there was death secondary to disease. RESULTS: During the study period, 1.2% of MCTs exhibited malignant transformation. The average age at presentation was 53.7 years. Mean follow-up time was 23 months. The most common presenting symptoms were bloating and abdominal pain. The average tumor size was 18 cm. Of note, 33% of cases were at least surgical stage IIIC at the time of presentation, whereas the remainder were stage IC or lower. Four (44.4%) of the 9 cases were identified as mucinous adenocarcinoma in addition to 1 case each of malignant melanoma, squamous cell carcinoma, and poorly differentiated adenocarcinoma. Only 1 patient experienced recurrence. One patient had a known MCT that was being managed expectantly and exhibited malignant transformation to a mucinous adenocarcinoma. CONCLUSIONS: A large ovarian mass that is suspected to be a mature teratoma should be managed more aggressively in older patients. Our data suggest that although malignancy arising from mature teratomas is rare, it is more likely when patients are older than 40 years, the mass is greater than 18 cm, and there is any suspicion for a mucinous tumor. Like most ovarian tumors, these tumors most often present at later stages and, thus, can be difficult to treat. It is unclear what role chemotherapy or radiation plays in the management of these tumors.


Assuntos
Adenocarcinoma Mucinoso/patologia , Adenocarcinoma/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células Escamosas/patologia , Cisto Dermoide/patologia , Neoplasias Ovarianas/patologia , Teratoma/patologia , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma Mucinoso/tratamento farmacológico , Adulto , Idoso , Carcinoma de Células Escamosas/tratamento farmacológico , Cisto Dermoide/tratamento farmacológico , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias Ovarianas/tratamento farmacológico , Prognóstico , Estudos Retrospectivos , Teratoma/tratamento farmacológico , Adulto Jovem
6.
AJR Am J Roentgenol ; 204(3): 674-80, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25714302

RESUMO

OBJECTIVE. This study assessed the clinical impact of pelvic MRI performed after the diagnosis of an indeterminate pelvic mass on ultrasound or CT. MATERIALS AND METHODS. The radiologic records of 567 patients who underwent pelvic MRI at our hospital from 2004 to 2006 were reviewed. Of these patients, 214 patients underwent pelvic MRI for evaluation of a gynecologic mass detected on a preceding ultrasound or CT examination; this group of patients constituted the basis of our study. The imaging and clinical records from the database were used for our analysis. The medical records were reviewed for the impact of the radiologic findings on patient treatment, and the results were tabulated for the findings of the first modality, whether the first modality provided a diagnosis, what management plan would be made according to the first modality, and what management plan would be made as a result of the MRI. The adequacy of the imaging study was assessed on the basis of either obtaining an accurate exact diagnosis or ascertaining at the minimum whether the mass was benign or malignant. Further endpoints included specificity and sensitivity of the individual modalities in the diagnosis of a specific gynecologic mass and whether clinical management was altered. Exact binomial CIs were computed for individual proportions. RESULTS. The clinical management of the patient was altered as a result of MRI in 77% of the cases (CI = 0.70-0.82). Surgery was avoided in 36% (CI = 0.29-0.43), and surgery was changed to a more appropriate method (laparoscopy vs laparotomy, involvement or not of a gynecologic oncologist) in an additional 17% (CI = 0.12-0.23). CONCLUSION. Without having undergone MRI, many of the women and girls in this study would have undergone unnecessary surgery; a more costly type of surgery; or long-term follow-up with the associated financial costs, personal and physical costs, and mental costs from the resultant anxiety of an unresolved indeterminate mass.


Assuntos
Doenças dos Genitais Femininos/diagnóstico , Imageamento por Ressonância Magnética , Adolescente , Adulto , Idoso , Criança , Feminino , Doenças dos Genitais Femininos/diagnóstico por imagem , Neoplasias dos Genitais Femininos/diagnóstico , Neoplasias dos Genitais Femininos/diagnóstico por imagem , Humanos , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X , Ultrassonografia , Adulto Jovem
7.
Int J Gynecol Cancer ; 24(7): 1250-5, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25010039

RESUMO

OBJECTIVE: The aim of this is to provide an updated review of the literature and to report our institutional experience with this rare gynecologic malignancy. METHODS: The medical records of patients with diagnosis of non-Hodgkin lymphoma of the female genital tract from 1980 to 2013 at the Yale-New Haven Hospital were reviewed retrospectively. Histological classification and staging were determined by the World Health Organization and Ann Arbor systems, respectively. Kaplan-Meier was used to calculate the survival. RESULTS: There were 36 patients with diagnosis of non-Hodgkin lymphoma of the female genital tract and followed for a median of 61 months (0-361 months). The median age of diagnosis was 44 years (19-87 years), and 76% (n = 28) were classified as stage IV.Of these, 4 patients were asymptomatic on presentation, and 13 were identified incidentally during surgery/radiography (n = 9), on prenatal ultrasound (n = 1), and on Papanicolaou test (n = 3). The location of the disease included the ovary (n = 6), uterine corpus and cervix (n= 9), vagina (n = 1), a pelvic mass (n = 7), isolated pelvic/para-aortic lymph nodes (n = 3), and/or multiple sites (n = 9). There were 6 cases that were concomitant with other gynecologic malignancies.Diffuse large B-cell lymphoma (n= 18) was the most common histologic type. A total of 28 patients underwent surgery. Combination chemotherapy was used in 34 patients, with concomitant radiation therapy in 7 and stem cell transplantation in 3. A total of 5 patients had recurrent disease.The overall median survival from the diagnosis of lymphoma was 70 months (0.3-361 months) with a 91% 1-year survival, 86% 5-year survival, and a 79% 10-year survival. CONCLUSIONS: Our report is the largest published single-institution experience of this disease. It demonstrates a more favorable prognosis and proposes that with early diagnosis and appropriate therapy, radical gynecologic surgery can be avoided.


Assuntos
Neoplasias dos Genitais Femininos , Linfoma não Hodgkin , Adulto , Idoso , Idoso de 80 Anos ou mais , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Bleomicina/uso terapêutico , Terapia Combinada , Ciclofosfamida/uso terapêutico , Citarabina/uso terapêutico , Diagnóstico Diferencial , Doxorrubicina/uso terapêutico , Feminino , Neoplasias dos Genitais Femininos/diagnóstico , Neoplasias dos Genitais Femininos/epidemiologia , Neoplasias dos Genitais Femininos/patologia , Neoplasias dos Genitais Femininos/terapia , Procedimentos Cirúrgicos em Ginecologia/estatística & dados numéricos , Humanos , Linfoma não Hodgkin/diagnóstico , Linfoma não Hodgkin/epidemiologia , Linfoma não Hodgkin/patologia , Linfoma não Hodgkin/terapia , Pessoa de Meia-Idade , Prednisolona/uso terapêutico , Prednisona/uso terapêutico , Gravidez , Complicações Neoplásicas na Gravidez/diagnóstico , Complicações Neoplásicas na Gravidez/epidemiologia , Complicações Neoplásicas na Gravidez/patologia , Complicações Neoplásicas na Gravidez/terapia , Estudos Retrospectivos , Análise de Sobrevida , Teniposídeo/uso terapêutico , Vincristina/uso terapêutico , Adulto Jovem
8.
J Low Genit Tract Dis ; 18(2): E55-61, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24402356

RESUMO

OBJECTIVE: This study aimed to report the results of hormonal therapy in the management of a patient with recurrent aggressive angiomyxoma (AAM) and to propose a management strategy for AAM based on (1) the estrogen receptor (ER) and progestin receptor contents of the tumor (2) the extent of disease based on magnetic resonance imaging findings and (3) the patient's menopausal status. MATERIALS AND METHODS: The chart of a patient with multiple pelvic recurrences of AAM managed surgically during a 16-year period followed by hormonal therapy was reviewed, and a literature search of pelvic, vaginal, and vulva AAM was performed. RESULTS: The patient presented in this report experienced 7 recurrences of AAM managed surgically during a 16-year period. She then was placed on leuprolide acetate for 3 monthly cycles, but the tumor recurred 6 months after the leuprolide acetate was discontinued. The patient was placed back on monthly leuprolide acetate for 5 years and has remained free of disease for more than 2 years after discontinuing the leuprolide acetate. A literature review suggest a role for hormonal therapy in the management of AAM based on the presence of ER/progestin receptor, the extent of the disease, and the menopausal status of the patient. Gonadotropin-releasing hormone analogs have been successfully used in premenopausal women as neoadjuvant therapy before surgery for previously untreated or recurrent disease, as adjuvant therapy after the initial surgical resection or after the resection of recurrent disease, and as the definitive treatment of AAM. Aromatase inhibitors may play a role in the treatment of ER-positive AAM occurring in postmenopausal women. CONCLUSIONS: Aggressive angiomyxoma can be an extremely hormonally sensitive tumor. Hormonal therapy may have a significant role in the treatment of patients with extensive or recurrent AAM that is ER positive. The selection of hormonal agents used for treating AAM can be based on the patient's menopausal status.


Assuntos
Antineoplásicos Hormonais/administração & dosagem , Mixoma/diagnóstico , Mixoma/tratamento farmacológico , Neoplasias Pélvicas/diagnóstico , Neoplasias Pélvicas/tratamento farmacológico , Adulto , Algoritmos , Feminino , Histocitoquímica , Humanos , Imageamento por Ressonância Magnética , Microscopia , Mixoma/patologia , Neoplasias Pélvicas/patologia , Pelve/diagnóstico por imagem , Radiografia
9.
AJR Am J Roentgenol ; 201(4): W648-55, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24059405

RESUMO

OBJECTIVE: The purpose of this article is to review the imaging features, particularly on MR images, useful in identifying primary gynecologic lymphoma. CONCLUSION: Primary gynecologic lymphoma is rare. Nonetheless, the distinction between primary and secondary involvement is important because of critical differences in prognosis and treatment. The prospective diagnosis of primary gynecologic lymphoma enables immediate chemotherapy or radiation therapy and avoids unnecessary surgery, which delays treatment. Diagnostic imaging can be key in differentiating lymphoma from the far more common pelvic malignancies.


Assuntos
Neoplasias dos Genitais Femininos/diagnóstico , Linfoma/diagnóstico , Imageamento por Ressonância Magnética/métodos , Imagem Multimodal/métodos , Tomografia por Emissão de Pósitrons , Tomografia Computadorizada por Raios X , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Pessoa de Meia-Idade
10.
JSLS ; 17(1): 156-60, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23743391

RESUMO

BACKGROUND AND OBJECTIVES: During the past few decades, there has been a significant increase in the number of cesarean deliveries, and thus an increase in the number of complications. A common complication of multiple cesarean deliveries is symptomatic uterine scar dehiscence, for which there are no treatment guidelines available. We report a case of uterine scar dehiscence-the repair of it by robotic surgery-and review the literature on this defect. CASE: The patient was a 39-year-old woman, gravida 4 para 2022, complaining of persistent vaginal spotting for the prior 5 months with a history of a cesarean delivery 3 months before the onset of the symptoms. DISCUSSION: We report a case of a successful robotic repair of a symptomatic cesarean scar defect. CONCLUSION: We propose further studies that include more patients so this technique may become the standard for cesarean scar defect.


Assuntos
Recesariana/efeitos adversos , Cicatriz/complicações , Procedimentos Cirúrgicos em Ginecologia/métodos , Robótica , Deiscência da Ferida Operatória/cirurgia , Útero/patologia , Adulto , Eletrocoagulação , Feminino , Humanos , Histeroscopia , Deiscência da Ferida Operatória/fisiopatologia , Útero/cirurgia , Cicatrização/fisiologia
11.
Fertil Steril ; 98(6): 1470-3, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22963807

RESUMO

OBJECTIVE: To describe a case of acute portal vein thrombosis after IVF treatment. DESIGN: Case report. SETTING: University teaching hospital. PATIENT(S): A 39-year-old woman experienced worsening, right upper quadrant pain several days after oocyte retrieval; ET was withheld. Imaging studies revealed acute portal vein thrombosis with extension into the splenic and superior mesenteric veins. INTERVENTION(S): Therapeutic anticoagulation; no ET was performed. MAIN OUTCOME MEASURE(S): Improvement in symptoms, accurate diagnosis of condition. RESULT(S): Decreased size of portal vein thrombosis and partial vessel recanalization. CONCLUSION(S): Thromboembolic events are a rare complication of assisted reproductive technology (ART). In women who present with upper abdominal pain during ART, portal vein thrombosis should be considered in the differential diagnosis.


Assuntos
Dor Abdominal/diagnóstico , Dor Abdominal/etiologia , Fertilização in vitro/efeitos adversos , Veia Porta/diagnóstico por imagem , Trombose Venosa/diagnóstico , Trombose Venosa/etiologia , Dor Abdominal/prevenção & controle , Adulto , Feminino , Fibrinolíticos/uso terapêutico , Humanos , Radiografia , Resultado do Tratamento , Trombose Venosa/tratamento farmacológico
13.
Eur J Radiol ; 74(1): 241-9, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19349135

RESUMO

PURPOSE: Uterine leiomyomas are the most common uterine neoplasms. Statistically, a uterine mass with unusual imaging features is more likely to represent a leiomyoma than other uncommon uterine mesenchymal neoplasms such as leiomyosarcoma or endometrial stromal tumors. Several prior studies have attempted to identify objective imaging characteristics that differentiate these entities. The purpose of this study was to test these criteria on our patient population. METHODS AND MATERIALS: This retrospective study was approved by the institutional Human Investigations Committee and was performed in compliance with HIPAA regulations. Four patients with uterine leiomyosarcoma, two with stromal tumors of uncertain malignant potential (STUMP), one with endometrial stromal sarcoma, and two with mixed endometrial stromal and smooth muscle tumors were included in the study. Seventeen additional control cases of leiomyomas were selected as controls. Cases were blindly evaluated by two experienced readers. Objective criteria included T1 and T2 signal characteristics, enhancement pattern, the presence of cystic changes, and ill defined margins. Subjective criteria included individual reader gestalt. All cases had pathologic correlation. RESULTS: None of the objective criteria were associated with the presence or absence of uterine mesenchymal neoplasm. Ill defined margins came closest to having statistical significance (p=0.06). Reader gestalt was statistically associated with the presence of mesenchymal neoplasm for one of our readers (p=0.02) but not for the other (p=0.07). CONCLUSION: We found poor accuracy for objective imaging criteria in distinguishing leiomyomas with atypical imaging features from more clinically significant uterine mesenchymal neoplasms.


Assuntos
Leiomiossarcoma/diagnóstico por imagem , Rabdomiossarcoma/diagnóstico por imagem , Sarcoma do Estroma Endometrial/diagnóstico por imagem , Neoplasias Uterinas/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias do Endométrio/diagnóstico por imagem , Feminino , Humanos , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Radiografia , Estudos Retrospectivos
14.
Radiology ; 250(2): 482-7, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19188316

RESUMO

PURPOSE: To test the hypothesis that not all embolic materials are equivalent by using postprocedural magnetic resonance (MR) imaging enhancement of uterine fibroids in patients treated with uterine artery embolization (UAE). MATERIALS AND METHODS: Approval and a waiver of consent from the institutional human investigations committee was received for this study. The study was HIPAA compliant. A total of 84 women who underwent 6-month MR imaging follow-up constituted this retrospective study. Within this group, 25 women were treated with Contour polyvinyl alcohol (PVA) particles, 23 were treated with Contour SE particles, 19 were treated with Embosphere microspheres, and 17 were treated with Bead Block microspheres. Pre- and postprocedural MR imaging results were analyzed for the total number of fibroids present in the uterus of each patient and for the percentage of individual fibroid enhancement. Enhancement of individual fibroids was measured with quartile intervals. Greater than 25% residual enhancement of a fibroid after embolization was considered an incomplete infarction. The overall percentage change in enhancement was calculated for each patient. Bivariate analysis by using generalized linear modeling and one-way analysis of variance was used to assess differences in infarction with different embolic materials. RESULTS: Among patients treated with Contour and Embosphere, there was a mean reduction in enhancement by 76.60% and 83.07%, respectively, compared with a mean reduction of 52.53% and 49.78% in patients treated with Bead Block and Contour SE, respectively. There was a significant difference in postembolization enhancement between Bead Block and Embosphere, Bead Block and Contour, Contour SE and Embosphere, and Contour SE and Contour. CONCLUSION: Patients treated with Bead Block or Contour SE demonstrated a reduced degree of infarction at follow-up MR imaging compared with patients treated with Contour or Embosphere.


Assuntos
Resinas Acrílicas/uso terapêutico , Gelatina/uso terapêutico , Leiomioma/terapia , Imagem por Ressonância Magnética Intervencionista , Embolização da Artéria Uterina/instrumentação , Neoplasias Uterinas/terapia , Adulto , Análise de Variância , Feminino , Humanos , Hidrogéis , Processamento de Imagem Assistida por Computador , Leiomioma/irrigação sanguínea , Leiomioma/patologia , Modelos Lineares , Pessoa de Meia-Idade , Resultado do Tratamento , Neoplasias Uterinas/irrigação sanguínea , Neoplasias Uterinas/patologia
15.
J Magn Reson Imaging ; 28(2): 428-33, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18666160

RESUMO

PURPOSE: To compare the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of ultrasound (US) and MRI in evaluation of pregnant patients with a clinical suspicion of appendicitis. MATERIALS AND METHODS: A total of 33 pregnant patients with suspected appendicitis underwent US and MRI. The original imaging reports generated at the time of presentation were used for data analysis. Pathology reports were used for disease confirmation in patients who underwent appendectomy. When surgery was not performed, a medical record review was performed. The sensitivity, specificity, PPV, and NPV were calculated for US and MRI in the diagnosis of appendicitis. RESULTS: Five of the 33 patients had pathologically-proven appendicitis. Four of the five patients with appendicitis were correctly diagnosed at MRI while one was interpreted as indeterminate (appendix not seen). At US, one was correctly diagnosed, one was incorrectly diagnosed as normal, and three were interpreted as indeterminate (appendix not seen). In 13 patients, a normal appendix was diagnosed at MRI, none of whom had appendicitis. In three patients, a normal appendix was diagnosed at US, one of whom had appendicitis. When the appendix was visualized at MRI, the sensitivity, specificity, PPV, and NPV for the diagnosis of appendicitis was 100% for all parameters. When the appendix was visualized at US, the sensitivity, specificity, PPV, and NPV for the diagnosis of appendicitis was 50%, 100%, 100%, and 66%, respectively. CONCLUSION: Based on a relatively small number of true-positives, our data suggests that MRI is very useful for the diagnosis and exclusion of appendicitis in pregnant women.


Assuntos
Apendicite/diagnóstico , Imageamento por Ressonância Magnética/métodos , Complicações na Gravidez/diagnóstico , Adolescente , Adulto , Apendicectomia , Apendicite/diagnóstico por imagem , Apendicite/cirurgia , Diagnóstico Diferencial , Feminino , Humanos , Valor Preditivo dos Testes , Gravidez , Complicações na Gravidez/diagnóstico por imagem , Complicações na Gravidez/cirurgia , Estudos Retrospectivos , Sensibilidade e Especificidade , Ultrassonografia
16.
J Comput Assist Tomogr ; 32(3): 356-61, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18520537

RESUMO

OBJECTIVE: Comparison of recurrence of magnetic resonance imaging (MRI) enhancement of uterine fibroids treated with uterine artery embolization (UAE) among embolic agents: polyvinyl alcohol (PVA), spherical PVA (SPVA), and tris-acryl gelatin microspheres (GM). METHODS: Pre/post-UAE gadolinium-enhanced MRIs were evaluated for residual enhancement of fibroids after UAE. Data were analyzed using 2-tail Fisher exact test to determine the likelihood of recurrence of enhancement post-UAE among embolic agents. RESULTS: One hundred one women underwent UAE. A total of 24 (41%) of 59 embolized with PVA, 18 (75%) of 24 with SPVA, and 4 (22%) of 18 with GM showed residual enhancement in some or all fibroids. Statistically significant differences in presence of residual enhancement on follow-up were found between SPVA and PVA (P = 0.0072), and SPVA and GM (P = 0.0015), but not between PVA and GM (P = 0.1756). CONCLUSIONS: Patients embolized with SPVA have a higher risk of having residual enhancement on follow-up MRI than those embolized with PVA or GM.


Assuntos
Resinas Acrílicas/uso terapêutico , Embolização Terapêutica , Gelatina/uso terapêutico , Leiomioma/diagnóstico , Leiomioma/terapia , Imageamento por Ressonância Magnética , Álcool de Polivinil/uso terapêutico , Neoplasias Uterinas/diagnóstico , Neoplasias Uterinas/terapia , Feminino , Humanos , Útero/irrigação sanguínea
17.
J Magn Reson Imaging ; 28(1): 121-7, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18581401

RESUMO

PURPOSE: To compare two T1-weighted (T1W) fat-suppressed sequences for 3D breath-hold pre- and postcontrast fat-suppressed T1W imaging of the female pelvis at 3T. MATERIALS AND METHODS: Pelvic MRI scans of 16 female patients were retrospectively identified who were scanned with two 3D breath-hold sequences: 1) a fast spoiled gradient echo sequence with spectral inversion at lipids (SPECIAL) (called 3D FSPGR), and 2) a dual-echo two-point Dixon (DE Dixon) sequence. Contrast between soft tissue and fat, soft tissue and fluid, and fat and fluid was measured on pre- and postcontrast images. Additionally, two readers subjectively scored the images for degree and homogeneity of fat suppression plus presence and severity of artifacts. RESULTS: Contrast between muscle and myometrium to fat was improved with the Dixon technique (0.61 vs. 0.09 and 0.7 vs. 0.3, respectively, P < 0.001). Both readers agreed that fat suppression was stronger with the Dixon sequence (P < 0.001 and P = 0.06). Artifacts were equivalent (P = 0.53 and 0.65). CONCLUSION: The 3D DE Dixon sequence achieved stronger fat suppression in the female pelvis when compared to a 3D FSPGR sequence with SPECIAL.


Assuntos
Imageamento por Ressonância Magnética/métodos , Pelve/anatomia & histologia , Feminino , Humanos , Estudos Retrospectivos
18.
J Magn Reson Imaging ; 26(1): 162-4, 2007 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-17659547

RESUMO

We describe a 37-year-old patient who presented with right lower quadrant pain and intermenstrual bleeding. MRI demonstrated a 5 x 5 cm lobulated mass centered in the right uterine wall interpreted as suspicious for malignancy. A total hysterectomy was performed, and the gross and histologic features were consistent with the diagnosis of a uterus-like mass. Uterus-like mass is a benign entity that can be found in a variety of organs, and is characterized by endometrium surrounded by smooth muscle. It is an extremely rare lesion with only approximately 15 cases reported in the current literature. There is a lack of imaging literature on this entity, which is primarily described in the pathology literature. Its histogenesis is uncertain, but is theorized to be metaplastic change, congenital anomaly, and/or heterotopia. However, given the MRI appearance in this case, we feel that uterus-like mass could be prospectively diagnosed or listed in a differential diagnosis.


Assuntos
Imageamento por Ressonância Magnética/métodos , Útero/patologia , Adulto , Ligamento Largo/patologia , Meios de Contraste , Diagnóstico Diferencial , Feminino , Gadolínio DTPA , Humanos , Histerectomia , Útero/cirurgia
19.
World J Gastroenterol ; 13(23): 3153-8, 2007 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-17589891

RESUMO

Imaging of both benign and malignant anorectal diseases has traditionally posed a challenge to clinicians, and as a result history and physical exam have been relied on heavily. CT scanning and endorectal ultrasound have become popular in assessment of anatomy and staging of tumors, but have limitations. Magnetic resonance imaging (MRI) has the capability to fill in the gaps left open by more conventional imaging modalities and continues to be promising as the definitive imaging technique in the pelvis, especially with advancement of emerging technologies in this field. A comprehensive review of this topic has been undertaken. Anorectal disease is divided into three broad categories: cancer, fistula/abscess, and pelvic floor disorders. A review of the literature is performed to evaluate the use of MRI and other imaging modalities in these three areas. Preoperative imaging is useful in the evaluation of all three areas of anorectal disease. MRI is an effective tool in delineating anatomy and, when correlating with the specific clinical scenario, is an effective adjunct in clinical decision-making in order to optimize outcome. MRI continues to be a promising and novel approach to imaging various afflictions of the anorectum and the pelvic floor. Its role is more well-established in some areas than in others, and there are still significant limitations. As technology advances, MRI will shed more light on a complex anatomical area.


Assuntos
Imageamento por Ressonância Magnética/métodos , Fístula Retal/diagnóstico , Neoplasias Retais/diagnóstico , Humanos , Diafragma da Pelve , Tomografia Computadorizada por Raios X
20.
Int J Fertil Womens Med ; 52(2-3): 111-20, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-18320870

RESUMO

OBJECTIVE: To investigate the relationship between MRI-determined uterine fibroid size and their location, and fibroid-related symptoms, including quality of life and sexual function, in women with symptomatic fibroids before uterine artery embolization (UAE). MATERIALS AND METHODS: Forty-six women underwent pelvic MRI within four weeks prior to UAE. The MRIs were analyzed and fibroid size and fibroid location were recorded. Women also completed a comprehensive self-report questionnaire within the four weeks prior to the procedure. The questionnaire (Short Form-36 (SF-36) and Female Sexual Function Index (FSFI), respectively, investigated the frequency of fibroid-related symptoms, as well as quality of life and sexual function. Pearson product moment correlation coefficients were used to examine relationships among variables, and ANOVAs were used to determine between-group difference. RESULTS: At baseline, women with symptomatic fibroids had worse quality of life and sexual function scores than healthy controls (p < .05). No fibroid-related symptoms, or aspects of quality of life or sexual function, were significantly correlated with either total uterine volume or largest fibroid volume. No significant differences with respect to fibroid-related symptoms were found between patients with or without subserosal or submucosal fibroids. CONCLUSIONS: Women with symptomatic fibroids pre-UAE had impaired quality of life and sexual function, but size and location of fibroids as determined by MRI were not related to fibroid-related symptoms, health-related quality of life, or sexual function.


Assuntos
Embolização Terapêutica/métodos , Leiomioma/patologia , Leiomioma/terapia , Qualidade de Vida , Neoplasias Uterinas/patologia , Neoplasias Uterinas/terapia , Útero/irrigação sanguínea , Artérias , Feminino , Humanos , Leiomioma/complicações , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Disfunções Sexuais Fisiológicas/etiologia , Neoplasias Uterinas/complicações , Saúde da Mulher
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