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Ultrasound in Medicine and Biology
exporting from the lesions. The sensitivity and specificity of specificity of local retention of contrast signals for breast cancer on CEUS were 93.4% and 92.5%, respectively. Importance of the Conclusions: It is valuable for CEUS in the diagnosis and differential diagnosis of breast neoplasms clinically. PD.08.003 Ultrasound Guided Intervention for the Management of Fat Necrosis in Autologous Fat Grafting for Mammoplasty S. H. Hung Taipei City Hospital, Taipei, Taiwan, R.O.C Introduction: Breast palpable indurations are a common complication after autologous fat grafting for augmentation mammoplasty. This side effect includes different composition of fat necrosis. Minimal invasive procedures are necessary to correct these adverse events after cosmetic surgery. Methods Involved: Patients who had breast lumps after fat grafting were evaluated by ultrasound. Under ultrasound guidance, a fine needle was used to aspirate the liquefied fat of the oil cysts. For the solid masses such as fat globules and sclerotic fat necrosis, vacuum-assisted core biopsy (VACB) was performed under ultrasound guidance to excise the abnormalities. Patients were followed up clinically and radiologically. Discussion: Oil cysts could be aspirated completely and rarely recurred. Fat globules were usually accompanied by liquefaction fat, but VACB allowed for the removal of both the solid and liquid components simultaneously. The outcome of such treatment was usually good. Sclerotic lesions were also resolved through VACB; however, perhaps due to their sclerotic nature, complete elimination of such lesions sometimes required a second round of treatment. Conclusion of the Presentation: This case report describes the successful use of an ultrasound guided intervention for treatment of fat necrosis after fat grafting mammoplasty. VACB can be a safe alternative to surgery in the treatment of FN in selected cases. PD.08.004 Complications of Interventional Ultrasound Baowei Dong Department of Interventional Ultrasonography, General Hospital of Pla, Beijing 100853, China Brief Description of the Purpose of the Review of Literature: This study aims to summarize the complications of interventional ultrasound. Description(s) Condition(s), Method(s) or Technique (s): This study summarized not only the incidence of complications of ultrasoundguided biopsy in the liver, kidney, thyroid, lymph node, but the microwave and radiofrequency ablation in liver neoplasms, including pain, bleeding, infection, seeding and nerve damage and so on, and furthermore to explore its causes and methods of prevention. In addition, this study provided a few cases caused serious consequences, even death, so as to draw profound lessons from them. Conclusion: As a minimally invasive yet accurate and efficient technology, interventional ultrasound has several advantages, such as broad indications, safety and fewer complications, which provides beneficial help for clinical diagnosis and treatment. Brief Discussion of the Case: Null PD.08.005 Fine Needle Aspiration Biopsy of Head and Neck Lesions Directed by Ultrasonography: 15 Years of Experience in an Institution J. H. O. Godoy, J. C. F. Godoy, C. T. Soares, M. C. Lopes, U. Frederigue, Jr. Clınica Diagnosis, Bauru, SP, Brasil
Volume 39, Number 5S, 2013 Brief Description of the Purpose of the Study: To evaluate the diagnostic potential of the fine needle aspiration biopsy tecnique on head and neck lesions with ultrasound guidance. Methods: Retrospective study based upon ultrasound guided fine needle aspiration cytology reports bettween july/1995 and july/2011. Cytologic findings were categorized in organ origin, neoplastic or non-neoplastic, their sub-categories, and non conclusive or indeterminate samples. There was also a evalution of possible local or sistemic complications of the procedures. Main Results: The study reveals the main diagnosis among cervical nodes sent to be elucidated, with histopathologic correlation, as possible, when the initial situation required further investigative ou therapeutic procedure. Considers also some comments about the tecnique and specially the practice of a four handed work crew uniting radiologist and pathologist. Importance of the Conclusions: Fine needle aspiration tecnique ultrasound guided is a highly safe and a highly efficacious method to diagnose head and neck lesions. PD.08.006 Planning Ultrasound for Percutaneous Radiofrequency Ablation to Treat Small (# 3 cm) Hepatocellular Carcinomas Detected on CT or MRI: A Multicenter Prospective Study to Assess Factors Affecting Ultrasound Visibility D. Choi, P. Y. Kim, H. Rhim Samsung Medical Center, Seoul, Korea Brief Description of the Purpose of the Study: The purpose of this study was to assess factors affecting tumor visibility on planning ultrasound (US) for percutaneous radiofrequency ablation to treat small hepatocellular carcinomas (HCCs) primarily detected on CT or MRI. Methods: The patients referred for planning US for percutaneous radiofrequency ablation between September 2008 and June 2009 were prospectively enrolled from nine institutions in Korea. The first small (# 3 cm) single HCC or new single HCC after treatment was included. HCCs which were not visible on planning US were compared with visible HCCs with respect to tumor size, the distance between the tumor and the diaphragm, subcapsular location, etiology of liver disease, liver cirrhosis, macronodular cirrhosis on US, ascites, Child-Pugh class, serum alpha-fetoprotein level, body mass index, previous treatments for HCC, previous chemoembolizations for HCC, institutions, and experience of radiologists. Main Results: Among 898 HCCs, 671 (74.7%) were visible on the planning US. In multivariate analysis, tumor size, the distance between the tumor and the diaphragm, liver cirrhosis, and macronodular cirrhosis were statistically significant factors affecting US detection (each p , 0.05). Importance of the Conclusions: Smaller tumors, subphrenic location of the tumor, liver cirrhosis, and macronodular cirrhosis were independent predictors of non-visualized tumors on planning US.
PD.08.007 Comparison of Sonographic Findings With Pathologic Results After Percutaneous Biopsy in Patients With Liver Diseases L. R. A. Coelho, G. P. Coelho, F. F. Brusasco, T. G. Abud, D. G. Abud, L. G. Abud Documenta Centro Avanc¸ado De Diagnostico Por Imagem, Ribeir~ao Preto, SP, Brasil Brief Description of the Purpose of the Study: To compare the sonographic findings with pathologic results after percutaneous biopsy in patients with liver disease. Methods: Retrospective analysis of 40 patients with liver function abnormalities, characterized by ultrasonographic change (steatosis) or