Stent-assisted coil embolization of wide-necked renal artery bifurcation aneurysms.

Purpose: To report preliminary results of stent-assisted coil embolization in the treatment of wide-necked renal artery bifurcation aneurysms.

Materials And Methods: Four patients (three women, one man; mean age, 54 years; range, 49-67 y) with wide-necked renal artery aneurysms were treated with dedicated neurointerventional self-expanding nitinol stent-assisted coil embolization during a 2-year period. The stent was delivered over the neck of the aneurysm, after which the aneurysm was filled with detachable coils through a microcatheter placed into the aneurysm through the stent mesh.

Surgical specimen can be replaced by core samples in assessment of ER, PR and HER-2 for invasive breast cancer.

Objective: To compare 14-gauge SCNB (stereotactic core needle biopsy) with surgery and to investigate tissue-heterogeneity of estrogen receptors (ER), progesterone receptors (PR) and human epidermal growth-factor receptor (HER-2) for nonpalpable breast cancers. To determine the number of cores needed for assessment of these factors.

Materials And Methods: Cores of 41 invasive cancers were collected in three containers: the 1st into A, the 2nd and 3rd into B and subsequent cores into C.

Carotid stenosis degree in CT angiography: assessment based on luminal area versus luminal diameter measurements.

The aim of this study was to investigate CT angiography (CTA) luminal area measurements in the assessment of carotid artery stenosis compared with the current clinically used criteria based on lumen diameter measurements. Seventy-two vessels in 36 patients were evaluated by CTA and digital subtraction angiography (DSA). Two observers measured area and diameter stenosis degrees using automated 3D CTA analysis software.

Add-on device for stereotactic core-needle breast biopsy: how many biopsy specimens are needed for a reliable diagnosis?

Purpose: To prospectively determine whether there is a minimum number of cores required for histopathologic diagnosis of mammographically detected nonpalpable breast lesions with an add-on 14-gauge stereotactic core-needle biopsy device.

Materials And Methods: The study was approved by the ethics committee of the hospital; informed consent was obtained. Biopsy was performed in 197 patients with 205 lesions (97 masses, 108 microcalcifications).

Breast lesions causing nipple discharge: preoperative galactography-aided stereotactic wire localization.

Objective: Lesions that present with nipple discharge typically are not visible on mammography or sonography but can be detected on galactography. Therefore, the usual methods for preoperative localization (wire placement under sonography or stereotactic guidance) are not applicable. We report our preliminary experience of galactography-aided stereotactic wire (n = 8) or coil (n = 1) localization of small intraductal lesions.

Multi-detector row CT angiography in the assessment of carotid artery disease in symptomatic patients: comparison with rotational angiography and digital subtraction angiography.

Background And Purpose: Compared with the single-detector technique, multi-detector row CT angiography permits larger anatomic coverage that includes both the epiaortic and entire carotid circulations. We evaluated the accuracy of multi-detector row CT angiography by using multiplanar reformation (MPR) for measuring carotid artery diameters compared with that of rotational angiography. We also evaluated the diagnostic performance of CT angiography compared with digital subtraction angiography (DSA).

Prenatal diagnosis of placenta accreta and percreta with ultrasonography, color Doppler, and magnetic resonance imaging.

Background: The risk of placenta previa and accreta is increased in females with previous cesarean deliveries, and there has been an increasing number of these operations.

Cases: We present 2 cases with previous cesarean and placenta previa in the following pregnancy. One patient had placenta accreta and the other, placenta percreta.

Carotid artery stenosis: reproducibility of automated 3D CT angiography analysis method.

The aim of this study was to assess the reproducibility and anatomical accuracy of automated 3D CT angiography analysis software in the evaluation of carotid artery stenosis with reference to rotational DSA (rDSA). Seventy-two vessels in 36 patients with symptomatic carotid stenosis were evaluated by 3D CT angiography and conventional DSA (cDSA). Thirty-one patients also underwent rotational 3D DSA (rDSA).