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Titolo:
SMALL SOLID RENAL LESIONS - USEFULNESS OF POWER DOPPLER US
Autore:
JINZAKI M; OHKUMA K; TANIMOTO A; MUKAI M; HIRAMATSU K; MURAI M; HATA J;
Indirizzi:
KEIO UNIV,SCH MED,DEPT DIAGNOST RADIOL,SHINJUKU KU,35 SHINANOMACHI TOKYO 1608582 JAPAN KEIO UNIV,SCH MED,DEPT PATHOL,SHINJUKU KU TOKYO 1608582 JAPAN KEIO UNIV,SCH MED,DEPT UROL,SHINJUKU KU TOKYO 1608582 JAPAN
Titolo Testata:
Radiology
fascicolo: 2, volume: 209, anno: 1998,
pagine: 543 - 550
SICI:
0033-8419(1998)209:2<543:SSRL-U>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
CELL CARCINOMA; ANGIOMYOLIPOMA; ULTRASOUND; DIFFERENTIATION; SONOGRAPHY; ONCOCYTOMA; TUMORS; BLOOD;
Keywords:
KIDNEY NEOPLASMS; KIDNEY NEOPLASMS, US; MYELOLIPOMA; ULTRASOUND (US, POWER DOPPLER STUDIES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
M. Jinzaki et al., "SMALL SOLID RENAL LESIONS - USEFULNESS OF POWER DOPPLER US", Radiology, 209(2), 1998, pp. 543-550

Abstract

Purpose: To evaluate whether the vascular pattern at power Doppler ultrasonography (US) improves diagnostic accuracy in small solid renal lesions over that at gray-scale U.S. Materials and methods: Gray-scale and power Doppler US were performed prospectively in 64 small (1.5-3.0-cm-diameter) solid renal lesions (26 renal cell carcinomas [RCCs], 34angiomyolipomas, two oncocytomas, two pseudotumors). At gray-scale US, echogenicity and homogeneity of the lesion, an anechoic rim, intratumoral cysts, shadowing, or a central scar were sought. At power Doppler US, the vascular distribution was divided into four patterns. Results: Findings at gray-scale US included an anechoic rim or intratumoral cysts in 20 of 26 RCCs (71%) and the two oncocytomas. Shadowing was seen in seven of 34 angiomyolipomas (21%). Echogenicity, homogeneity, and a central scar were not pathognomonic. At power Doppler US, pattern 3 (peripheral) or 4 (mixed penetrating and peripheral) was seen in allRCCs, seven of 34 angiomyolipomas, and the two oncocytomas. Pattern 1(intratumoral focal) or 2 penetrating) was seen in 27 angiomyolipomas. Pattern 1 or 2 was characteristic of angiomyolipoma. The rate of correct diagnosis was significantly increased with combined US (78%) as compared to that with gray-scale (42%) or power Doppler (45%) US alone. Conclusion: The vascular distribution at power Doppler US could add important information to gray-scale US findings for differential diagnosis of small solid renal lesions.

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Documento generato il 04/12/20 alle ore 18:48:27