Books and Scientific Papers by Theo HM Falke
In July 1287, during mediation by Edward I for the release of Charles, prince of Salerno, the kin... more In July 1287, during mediation by Edward I for the release of Charles, prince of Salerno, the kings of England and Aragon met with Charles' representatives at a large assembly at Oloron in Béarn, on the edge of the Pyrenees west of Bayonne. An English document deriving from this meeting reveals the presence there of the famous physician Arnau de Vilanova, a member of the Aragonese party, and recipient of a gift from the king of England. This article demonstrates how this document and other recent discoveries, properly contextualised, can illuminate an obscure period in Arnau's life in which he turned towards a new pattern of existence.
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Diagnostic imaging in clinical medicine, 1984
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New England Journal of Medicine, 1992
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European journal of radiology, 1981
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European journal of radiology, 1983
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Clinical Radiology, 1986
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Nederlands tijdschrift voor geneeskunde, 2003
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Digestive diseases and sciences, 1996
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Investigative Radiology, 1995
To determine the relative contribution of slice thickness and intraluminal contrast density to im... more To determine the relative contribution of slice thickness and intraluminal contrast density to imaging of the large bowel wall. The authors used phantom experiments to evaluate the partial volume averaging of 2-, 4-, and 8-mm slices on imaging a single density interface (320/-100 HU) and 5 dual-density interfaces (320/50/-100 HU, 160/50/-100 HU, 0/50/-100 HU, -100/50/100 HU, and -1000/50/100 HU). For the experiments with a dual-density interface, which simulated the bowel wall, the phantom was scanned at an angle 45 degrees to the scan plane. The most accurate display of interfaces was obtained with a slice thickness of 2 mm. When using 8-mm slices, walls can appear to be much thinner or thicker than normal or not even recognizable as a wall depending on the densities in the interface. Adjusting the density of the intraluminal contrast medium to within the range of the mean and window setting will improve the representation of the bowel wall. Slice thickness has a significant influence on the true representation of the bowel wall using computed tomography. This effect is greater than the effect of the intraluminal contrast medium density.
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Gynecologic oncology, 1994
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Radiographics : a review publication of the Radiological Society of North America, Inc, 1991
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Journal of Computer Assisted Tomography, 1987
The use of CT in the documentation of ancient Egyptian mummified human remains has previously bee... more The use of CT in the documentation of ancient Egyptian mummified human remains has previously been described in this and other journals. We recently applied this technique to a collection of ancient Egyptian mummified fauna and sarcophagi. We selected an example to illustrate that CT is also uniquely suitable for the study of such specimens in a noninvasive way.
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Infection, 1982
Candida vertebral osteomyelitis was diagnosed in a patient with systemic lupus erythematodes foll... more Candida vertebral osteomyelitis was diagnosed in a patient with systemic lupus erythematodes following X-ray evidence of osteomyelitis and the repeated culturing ofCandida albicans from material obtained by needle biopsies from the third lumbar vertebra. The patient had been on glucocorticosteroids and parenteral nutrition six months previously. At that time, a yeast was cultured from the blood and the tip of the subclavian catheter which had been removed. After candida vertebral osteomyelitis was diagnosed, she was treated with ketoconazole for seven months. Recovery was impressive, as judged by the clinical and radiographic findings. At the time of writing this paper — 12 months after the withdrawal of ketoconazole — the patient showed no signs of recurrence. Bei einer Patientin mit systemischem Lupus erythematodes wurde röntgenologisch eine Wirbelosteomyelitis diagnostiziert. In Material, das durch Punktur des dritten Lendenwirbelkörpers gewonnen wurde, ließ sich kulturell wiederholtCandida albicans nachweisen. Sechs Monate vorher war die Patientin mit Kortikosteroiden behandelt und parenteral ernährt worden. Zu dieser Zeit wurden aus dem Blut und von der Spitze des entfernten Subclavia-Katheters Hefen kultiviert. Nachdem eine Wirbelosteomyelitis durchCandida diagnostiziert worden war, wurde die Patientin sieben Monate lang mit Ketoconazol behandelt. Entsprechend den klinischen und röntgenologischen Befunden kam es zu einem eindrucksvollen Heilungsverlauf. Zwölf Monate nach Beendigung der Ketoconazolbehandlung — zum Zeitpunkt der Manuskripterstellung — waren bei der Patientin keine Zeichen für einen Rückfall festzustellen.
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Journal of Thoracic Imaging, 1988
A practical clinical evaluation of the role of gated magnetic resonance imaging (GMRI) for the ev... more A practical clinical evaluation of the role of gated magnetic resonance imaging (GMRI) for the evaluation of congenital and acquired diseases of the pulmonary artery is presented, comparing GMRI to the already established usefulness of other various noninvasive and invasive imaging modalities.
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Magnetic Resonance Imaging, 1996
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Journal of Computer Assisted Tomography, 1989
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European heart journal, 1995
The aim of the present study was two-fold: first, to quantify characteristic parameters of the pu... more The aim of the present study was two-fold: first, to quantify characteristic parameters of the pulmonary venous flow pattern in patients with mitral regurgitation by using magnetic resonance phase velocity mapping; second, to determine whether this pattern is dependent on the vein being investigated and the direction of the regurgitant jet. Echocardiographic findings threw doubt on whether the pulmonary venous flow pattern is independent of the vein being investigated and whether the flow velocities in the pulmonary veins have a linear relationship with the volume flow. Flow patterns were assessed in all four pulmonary veins by magnetic resonance velocity mapping in healthy volunteers and in 17 patients with echocardiographically mild and 13 patients with severe regurgitation. No differences were found between the use of velocity or volume flow for characterizing individual curves. The pulmonary venous flow pattern in controls was characterized by six points, a biphasic systolic wave (maximum systolic volume flow: 29 +/- 18 ml.s-1), and end-systolic descent (24 +/- 18 ml.s-1), a biphasic diastolic wave (maximum diastolic volume flow: 69 +/- 22 ml.s-1) and an end-diastolic reversed flow. Reversed end-systolic flow was a characteristic sign of severe regurgitation (-10 +/- 18 ml.s-1). The systolic-to-diastolic flow ratio was lower in severe regurgitation (0.5 +/- 0.6) than in mild regurgitation (1.4 +/- 0.9), P < 0.0001). In severe regurgitation, the normalized time intervals from Q wave to the highest systolic peak and end-systolic descent were of less prolonged duration than in mild regurgitation and controls (P < 0.01). Flow patterns between veins were similar and the median of the correlation coefficients between the curves was the same in patients with or without an eccentric jet, 0.80 and 0.81, respectively. Magnetic resonance velocity mapping is helpful in determining and understanding pulmonary venous flow characteristics. It is demonstrated that the pulmonary venous flow pattern is independent of the vein being investigated irrespective of the regurgitant jet direction, and that it is useful in grading mitral regurgitation.
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Books and Scientific Papers by Theo HM Falke