Computed tomography and cerebral infarctions: With an introduction to practice and principles of CT scan reading: By J. Valk, M.D. New York, Raven Press, 1980 190 pp., $29.50HumansEsophageal DiseasesChest PainPhysicians, FamilyEvaluation Studies as Topic...
The scan protocols in cardiac computed tomography (CCT) are rather varied and in constant evolution due to the rapid development of multislice technology [1, 2]. Providing absolute indications which are valid for all scanners is no simple matter. The protocols are also influenced by the logic ...
First-generation cardiac CT imaging techniques comprise simultaneous recording of the ECG signal combined with continuous low-pitch spiral scan acquisition with relatively high incident radiation...doi:10.1007/978-1-60327-237-7_7Thomas HenzlerInstitute of Clinical Radiology and Nuclear Medicine, University...
CT ; CSF Acute or subacuteencephalopathy; 210/110, (lower in pressure elevated evolution, use ofeclampsia eclampsia and in aminophylline orchildren) headache, catecholamineseizures, hypertensive medicationsretinal changesComa without focal or Meningitis and Stiff neck, Kernig sign, CT scan ; pleocytosis...
The Principles of Magnetic Resonance Imaging Magnetic Resonance Imaging, or MRI, is a medical imaging technique used to visualize structures inside the body. It does not use any ionizing radiation, and is therefore considered a safe alternative to techniques such as X-ray or CT scan. Instead, ...
Oftentimes it is helpful to know the exact location of the physiologic that is visualized on a scan. Knowing the exact location can sometimes help to distinguish normal from abnormal physiologic . When an abnormality has been identified, knowing the exact location can then be helpful in treatment...
The most recent generation of MSCT systems acquire 64 slices per rotation, enabling a whole body CTA with 1,500 mm scan range and an isotropic resolution of down to 0.4 mm in only 22- 25 s. The tube and the detector measurement system belong to the most important system components of a...
Automatic coregistration is necessary in cases where image data acquired separately cannot be fused into one because the anatomical information in the PET scan is insufficient to allow it to be matched to the CT scan. Patient positioning is different for PET and CT due to differences in arm po...
A simple CT scan produces a one-dimensional strip radiograph for each projection through the patient. Inmultislice CT(Fig. 1-3) this operation is performed simultaneously for many arrays of detectors stacked side by side along the z-axis (long axis) of the patient. The x-ray beam collimator...
To give an example of a situation more consequential than berry picking, how does an interruption change the behavior of a doctor foraging for signs of the spread of cancer in an abdominal CT scan? In most previous foraging research, patches are visited only once and revisitation is not ...