Unregistered User If this is not your name, click here.
		Contact Us | Order Now | Journals | Bookstore | Register a colleague
	Select a ChannelAcneAIDS and HIVAllergy OtherAlzheimer'sAnaesthesiology OtherAngina Pectoris/MIAnxietyArthritis OtherAsthmaBack PainBacterial InfectionsBladder CancerBone Marrow TransplantationBreast CancerCardiology OtherCataractCell TransplantationCervical CancerCholesterol/Lipid disordersCirrhosisClinical PharmacologyColorectal CancerCongestive Heart FailureContact DermatitisContraceptionCOPDCystic FibrosisDental and Oral DisordersDepressionDermatology OtherDiabetesDialysisEating DisordersElbowEmergency MedicineEndocrinology OtherEpilepsyErectile DysfunctionFibromyalgiaGastro OtherGeneticsGenitourinary OtherGeriatricsGERD/GastritisGlaucomaH. Pylori/UlcerHaematology OtherHair LossHeadachesHepa/Biliary OtherHepatitisHipHRTHypertensionIBDImmunologyInfectious OtherInfertilityIntensive CareIrritable Bowel SyndromeKneeLeukemiasLiver CancerLung CancerLupusLymphomasMelanomaMenopauseMultiple Sclerosis Nephrology OtherNeurologic OtherNutritional / Metabolic OtherOb/Gyn OtherObesityOncology OtherOphth. OtherOphthalmic SurgeryOrgan TransplantationOrthopaedics OtherOsteoarthritisOsteoporosisOtitisOtorhino. OtherOvarian CancerPaediatricsPainPancreatic CancerParkinson'sPregnancyProstate CancerPsychiatry OtherPulmonary OtherRadiologyRenal CancerRenal FailureRespiratory InfectionsRheumatoid arthritisRheumatology OtherRhinitisSchizophreniaShoulderSleep ApnoeaSleep DisordersSpineStrokeSTDsSurgeryThyroid DisordersTransfusionTransplant Surgery OtherTraumaUrinary IncontinenceUrinary tract infectionsVaccinologyVascular DisordersViral Infections

SEARCH   News Bookstore Medline The Web Meetings & Congresses Complete Doctor's Guide    EXPLORE :    All News   All Webcasts   All Cases   All Meetings & Congresses   All Medical Resources New drugs / indications English Dictionary Medical Dictionary Thesaurus Warning | Privacy | Awards  Favourite Journals  Click here to choose your favourite journals  Favourite Sites  Click here to choose your favourite sites  Languages  Select languageEnglishFrançais

DG DISPATCH - RSNA: Harmonic Power Doppler Enhances Patterns Of Hepatocellular Lesions By Lara Pullen Special to DG News CHICAGO, IL -- December 6, 1999 -- Differential diagnosis of small, nodular, hepatic lesions remains difficult. A recent study suggests that evaluation of the enhancement pattern of harmonic power Doppler imaging is a valuable, noninvasive means to investigate tumor vascularity. Dr. Carlo Bartolozzi, of the University of Pisa in Italy, presented the results of this study at the 85th Annual Meeting of the Radiological Society of North America, in Chicago, IL. Sixty-one histologically-proven, liver tumors of hepatocellular origin (in 47 patients) were included in the pilot clinical study. Pathologic diagnosis included hepatocellular carcinoma (n = 37), macroregenerative nodule (n = 16), focal nodular hyperplasia (n = 6), and hepatocellular adenoma (n = 2). Examination was technically successful in 50 of 61 lesions (82 percent). The investigators encountered three distinct patterns of enhancement -- hypervascular, hypovascular and avascular. There was a 96 percent agreement when comparing Doppler ultrasound with tissue-core percutaneous biopsy and spiral computed tomography in the differentiation of hypervascular versus hypovascular lesions. Dr. Bartolozzi concluded that, despite the considerable overlap between benign and malignant tumors, this technique has the potential to help characterize hepatocellular lesions. E-mail this page to a friend or colleague! To print, use this version