Marcus Hoermann

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OBJECTIVE The aim of this study was to describe the MR appearance of acute appendicitis and to determine the value of MR imaging for diagnosis of acute appendicitis. SUBJECTS AND METHODS Forty-five children (28 girls, 17 boys), 7-16 years old (mean age, 13 years old), with clinically diagnosed acute appendicitis underwent independently graded compression(More)
PURPOSE To develop a practical method of estimating the volume of pleural effusions with sonography. MATERIALS AND METHODS Fifty-one patients underwent sonography of the pleural space while supine. Sonographic results and results of lateral decubitus radiography were compared with actual effusion volumes. The maximum thickness of the pleural fluid layer(More)
RATIONALE Cystic fibrosis (CF) is characterized by progressive pulmonary inflammation that is infection-triggered. Pseudomonas aeruginosa represents a risk factor for deterioration of lung function and reduced life expectancy. OBJECTIVES To assess T-cell cytokine/chemokine production in clinically stable children with CF and evaluate the association(More)
OBJECTIVE To evaluate age-dependent changes in fetal kidney measurements with MRI. PATIENTS AND METHODS Fetal MRI examinations were used to study the kidney length (218 fetuses), signal intensities of renal tissue, renal pelvis, and liver tissue on T2-weighted images (223 fetuses), and the whole-kidney apparent diffusion coefficient (107 fetuses). A 1.5 T(More)
OBJECTIVE The aim of this study was to describe the spectrum of abnormalities seen in generalized cystic lymphangiomatosis as shown by CT and MR imaging and to correlate these findings to gross pathology. CONCLUSION MR imaging and CT may substantially broaden visualization of the spectrum of abnormalities seen in generalized cystic lymphangiomatosis by(More)
Clinical examination of the scrotum is difficult due to the small size of the testes and the epididymis in infants and young children, and eliciting patients’ history is challenging. Therefore imaging of the scrotum in childhood bears great importance. Ultrasound is the standard imaging technique of choice providing the clinicians with a definitive(More)
Our objective was to assess the ability of MR imaging in the detection of the normal appendix, and to describe the MR appearance of the normal appendix. There were 15 healthy volunteers (11 girls, 4 boys; mean age 12.3 years) who underwent MR imaging on a 1.0-T unit. The imaging protocol included axial and coronal T2-weighted ultra turbo spin-echo(More)
OBJECTIVE The objective of the study is to present longitudinal observations in antenatally detected congenital lung malformations (CLM), particularly pulmonary sequestration (PS) and cystic adenomatoid malformation (CAM). METHODS Fetuses found to have a CLM on prenatal ultrasound (US) were included in this study and followed up until delivery. In all(More)
The assessment of the urinary system is typically performed by ultrasound. Nevertheless, an ultrasound may be inconclusive in fetuses with renal diseases that result in anhydramnios or oligohydramnios. In such cases, and in other cases in which ultrasound is limited, further investigation with MR should be considered. In the following article, we will(More)
Imaging techniques for first line investigation of diseases of the thyroid gland are sonography (US) and scintigraphy, followed in dedicated cases by magnetic resonance imaging (MRI). Malignant lesions are generally hypoechoic on US with calcifications visible in some cases. The appearance of lymph node metastases is similar to that of the primary tumour.(More)