[Ultrasound-guided fine-needle aspiration of the breast].

Purpose: Retrospective analysis of the results of all ultrasound (US)-guided fine needle aspirations (FNA) of the breast performed at our institution between 1988-2002.

Materials And Methods: The radiologic and pathologic information database was retrospectively searched for all referrals, in whom an US-guided FNA of the breast was performed as further diagnostic work-up of sonographically unclear or suspicious findings. Percutaneous tissue diagnosis was performed under US-guidance using a 20-Gauge-needle.

Dose optimization of contrast-enhanced carotid MR angiography.

The purpose of this work was to compare the diagnostic performance of a single-contrast or a double-contrast dose of carotid contrast-enhanced MR angiography (MRA). One-hundred nineteen patients (mean age 65+/-14.4 years) underwent carotid contrast-enhanced MRA with a standardized protocol (repetition time/echo 3.

[Evaluation of bloody nipple discharge].

A 64-year old woman was referred for radiological evaluation of right sided bloody nipple discharge lasting for five months. Finally galactography supposed the diagnosis of an intraductal papilloma which was confirmed by surgery. Histopathologically an eight millimeter measuring intraductal papilloma with atypical ductal hyperplasia with signs of a carcinoma in situ was seen.

Theoretical study of the influence of a heterogeneous activity distribution on intratumoral absorbed dose distribution.

Radioimmunotherapy of hematopoeitic cancers and micrometastases has been shown to have significant therapeutic benefit. The treatment of solid tumors with radionuclide therapy has been less successful. Previous investigations of intratumoral activity distribution and studies on intratumoral drug delivery suggest that a probable reason for the disappointing results in solid tumor treatment is nonuniform intratumoral distribution coupled with restricted intratumoral drug penetrance, thus inhibiting antineoplastic agents from reaching the tumor's center.

[Referrer satisfaction as a quality criterion: developing an questionnaire for measuring the quality of services provided by a radiology department].

Purpose: To develop a questionnaire for measuring referring physician satisfaction and to conduct a pilot study in which this questionnaire is given to all physicians referring patients to the authors' radiology department.

Materials And Methods: After qualitative pre-testing and adjustment of the prototype questionnaire, data were collected using the finalized standardized questionnaire comprising 29 indicators rated on a 4-point ordinal scale mailed with a personalized cover letter to the total referring physician population of a radiology department (n = 727). The replies, rated 1 - 4, were entered into a data entry mask for statistical analysis.

[Referrer satisfaction as a quality criterion: developing an questionnaire for measuring the quality of services provided by a radiology department].

Purpose: To develop a questionnaire for measuring referring physician satisfaction and to conduct a pilot study in which this questionnaire is given to all physicians referring patients to the authors' radiology department.

Materials And Methods: After qualitative pre-testing and adjustment of the prototype questionnaire, data were collected using the finalized standardized questionnaire comprising 29 indicators rated on a 4-point ordinal scale mailed with a personalized cover letter to the total referring physician population of a radiology department (n = 727). The replies, rated 1 - 4, were entered into a data entry mask for statistical analysis.

Computed tomography-generated templates: a new approach to frontal sinus osteoplastic flap surgery.

Background: The aim of this study was to present a new technique for frontal sinus template creation used in osteoplastic flap surgery, obviating the need for the traditional 6-ft Caldwell radiograph.

Methods: Seventeen human cadaver skulls were studied prospectively. Using digital addition algorithms of sequential coronal computed tomography (CT) images of the frontal sinus to create a composite image, an image is printed to 1 cm = 1 cm scale.

[Ovarian torsion in childhood].

A six year old afebrile girl was referred to the emergency department with abdominal pain in the right lower region. A retrouterine partially cystic lesion with an inhomogene echogenity was demonstrated by transabdominal ultrasound. Pelvic MR showed an enlarged right-sided ovary and a thickened vascular pedicle as well as few adjacent free fluid.

AglZ is a filament-forming coiled-coil protein required for adventurous gliding motility of Myxococcus xanthus.

The aglZ gene of Myxococcus xanthus was identified from a yeast two-hybrid assay in which MglA was used as bait. MglA is a 22-kDa cytoplasmic GTPase required for both adventurous and social gliding motility and sporulation. Genetic studies showed that aglZ is part of the A motility system, because disruption or deletion of aglZ abolished movement of isolated cells and aglZ sglK double mutants were nonmotile.

Cerebral asymmetries for language: evidence for structural-behavioral correlations.

The current investigation tested 20 male right-handers in 5 divided visual field lexical tasks. Asymmetries in Heschl's gyrus, planum temporale, and planum parietale were measured using structural magnetic resonance imaging. Composite task asymmetries were positively correlated with asymmetry of the planum temporale only.

The utility of psychological testing in assessing emotional damages in personal injury litigation.

Psychological testing and assessment instruments frequently play a small but important role when psychologists assist the courts as emotional damage experts in personal injury matters. However, examiners frequently, if sometimes inadvertently, mislead the court with test interpretations that are based on clinical rather than forensic populations and that fail to appreciate the lack of robustness of clinical measures in this forensic context. Whereas published computerized interpretations repeatedly remind experts that personality test results should only be used as a method to generate hypotheses about the examinee that are to be subjected to further investigation and consideration, experts all too often inform the courts of test interpretations as if the test results were measures of clinical constructs rather than plaintiffs' self-reports of symptoms.

Early and unusual incisor resorption due to impacted maxillary canines.

A very early and severe case of maxillary incisor resorption caused by impacted canines is reported. An estimated 50,000 cases of ectopic eruption and impaction of maxillary canines occur each year in the United States. Although incisor resorption due to ectopically positioned permanent maxillary canines can be swift, silent, and devastating, an effective protocol has been developed for early detection and management of this condition.

Cerebral embolism from atrial myxoma in pediatric patients.

We describe 2 children with cerebrovascular events caused by emboli from left atrial myxomas and review 7 other pediatric cases from the literature. Transient cutaneous eruptions involving the extremities preceded the cerebrovascular events and were most likely attributable to fragmentation of the atrial tumor with peripheral embolization. Our first case demonstrates the more common presentation with acute hemiplegia caused by cerebral infarction and the second case a transient ischemic attack manifested by more subtle features as a result of involvement of the vertebrobasilar circulation.