Adnexal masses: transvaginal US and gadolinium-enhanced MR imaging assessment of intratumoral structure.

Komatsu, Takayuki; Konishi, Ichiro; Mandai, Mari; Togashi, Kaori; Kawakami, Satoru; Konishi, Junji; Mori, Toshiyuki

doi:10.1148/radiology.198.1.8539360

Cited by 92 publications

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“…First, the detection of papillary projections, as opposed to more nondescript solid tissue, in a n ovarian mass identifies the mass as an ovarian surface epithelial-stromal neoplasm. Necrotic material, hemorrhage, or clot must be distinguished from papillary projections to avoid the erroneous diagnosis of ovarian neoplasia (2,4). Second, the size and extent of' the papillary projections may correlate with the aggressiveness of the tumor: papillary projections usually are absent in cystadenomas and, if present, generally are small ( 12-1 5).…”

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confidence: 99%

Papillary projections in ovarian neoplasms: Appearance on MRI

Outwater

Huang

Dunton

et al. 1997

Magnetic Resonance Imaging

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Papillary projections are distinctive pathologic features of epithelial ovarian neoplasms. We sought to determine whether these structures have recognizable features on MRI. A search of a database of 125 patients on whom MRI was performed with pelvic phased-array coil and abdominal surgical exploration was performed for suspected gynecologic disease identified 15 patients who had either MRI reports or pathology reports mentioning papillary projections in an adnexal mass. The MR images were reviewed to characterize the size, structure, and signal intensity of papillary projections. Pathologic correlation was performed on these and on four surgical specimens imaged with high resolution technique. Pathologic correlation showed that larger papillary projections had a distinctive structure of a fibrous stalk supporting clumps of edematous papillae with signal intensity similar to that of fluid on T2-weighted images. Smaller papillae showed nondescript intracystic projections of intermediate signal intensity on T2-weighted images. All papillary projections in vivo enhanced after injection of gadopentetate dimeglumine. Papillary projections have an appearance on MRI that reflects their histologic structure.

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confidence: 99%

Papillary projections in ovarian neoplasms: Appearance on MRI

Outwater

Huang

Dunton

et al. 1997

Magnetic Resonance Imaging

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“…But, although the reported sensitivities of the technique are high (85-100%), the specificities are variable (50-100%) [12,37,38]. Both US and MRI are equally sensitive in the evaluation of the intratumoral structure of ovarian masses, but MRI was proved more specific and accurate [39][40][41][42]. MR imaging is known to provide increased resolution for imaging of gynecologic diseases [43][44][45][46].…”

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confidence: 99%

Comparative evaluation of multidetector CT and MR imaging in the differentiation of adnexal masses

et al. 2008

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The purpose was to compare the accuracy of multidetector CT (MDCT) on a 16-row CT scanner and magnetic resonance (MR) imaging in the characterization of ovarian masses. Preoperative CT examination of the abdomen and MR imaging of the pelvis was performed in 67 women, with clinically or sonographically detected adnexal masses. The CT examinations were performed on a 16-row CT scanner, and the protocol included scanning of the abdomen during the portal phase, using a detector collimation of 16 x 0.75 mm and a pitch of 1.2. We used a 1.5-T magnet unit to perform T1, T2 and fat-suppressed T1-weighted sequences, before and after intravenous administration of gadolinium chelate compounds. The accuracy of multidetector CT and MR imaging in the differentiation between benign and malignant ovarian masses was evaluated, using histopathologic results as the standard of reference. The sensitivity, specificity and accuracy of MDCT in the characterization of ovarian masses were 90.5%, 93.7% and 92.9%, respectively, and that of MR imaging 95.2%, 98.4% and 97.6%, respectively. Although MRI performed slightly better, this did not reach statistical significance. In conclusion, both MDCT on a 16-row CT scanner and MR imaging demonstrated satisfactory results in the characterization of ovarian masses.

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“…[14][15][16] Higher specificities have been reported for studies using gadolinium-enhanced MRI compared with non-enhanced studies, and the diagnostic accuracy of contrast-enhanced MRI is better than that of non-contrast MRI or TVUS. This advantage is largely due to the differentiation of solid components and papillary projections of ovarian neoplasms from intracystic clots or debris.…”

Section: Discussionmentioning

confidence: 99%

Contrast‐enhanced power Doppler sonography of malignant ovarian tumors using harmonic flash‐echo imaging: preliminary experience

Kohzuki

Kanzaki

Murata

2005

J of Clinical Ultrasound

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To investigate the potential usefulness of contrast-enhanced intermittent harmonic sonography in the diagnosis of ovarian cancer, we evaluated 4 patients with complex adnexal masses suspected of malignancy using intermittent harmonic sonography after injection of a contrast agent. Tumor and/or mural nodule tissue enhancement was detected in all cases of ovarian malignancy. Contrast-enhanced, intermittent harmonic sonography provides a satisfactory visualization of blood flow in the solid portion of the tumor tissue and may support a diagnosis of ovarian malignancy. Depiction of blood vessels using low MI techniques may be possible with other vascular ultrasonographic contrast agents.

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Adnexal masses: transvaginal US and gadolinium-enhanced MR imaging assessment of intratumoral structure.

Abstract: Both transvaginal US and gadolinium-enhanced MR imaging were highly sensitive in identification of solid components within an adnexal mass. Gadolinium-enhanced MR imaging was specific, whereas transvaginal US was nonspecific.

Cited by 92 publications

References 0 publications

Papillary projections in ovarian neoplasms: Appearance on MRI

Papillary projections in ovarian neoplasms: Appearance on MRI

Comparative evaluation of multidetector CT and MR imaging in the differentiation of adnexal masses

Contrast‐enhanced power Doppler sonography of malignant ovarian tumors using harmonic flash‐echo imaging: preliminary experience

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