Computed tomography (CT) has been used to investigate the presence, site, and extent of glomus complex tumors. High resolution CT scanning can accurately evaluate invasion of cervical soft tissues, intratympanic or intracranial extension, and bony involvement of the skull base. Glomus tumors can be differentiated by CT angiographic dynamic study ...

Dynamic CT of the chest is superior to conventional CT and electronic radiography with contrast medium. The advantages are the high intravasal concentration of contrast medium immediately after its injection, and that the wash-out effect of it can be studied. Dynamic CT of the chest may be used in the ...

Contrast enhancement (CE) of the aorta, liver, and spleen was studied in dynamic body computed tomography (CT) in 71 patients. Four contrast media (CM) (diatrizoate, ioxithalamate, ioxaglate, iopamidol) were injected intravenously in equal bolus doses of 18.5 g iodine. Iopamidol produced the highest average peak and 2-minute aortic CE, significantly ...

A study comparing precontrast and survey postcontrast dynamic computed tomographic (CT) scanning was performed on 60 patients who had suspected hepatic metastases. An incremental dynamic technique was used during and following a 50-g iodine load administered over two minutes. The survey postcontrast dynamic technique was superior in both sensitivity and ...

Dynamic radionuclide angiography (5-sec. images) with technetium-99m-sulfur colloid proved to be helpful in 5 patients who presented with gastrointestinal bleeding. In 2, intermittently bleeding hypervascular lesions were seen on dynamic but not on static images; in 2 others, the dynamic images demonstrated hypervascular lesions better than the static scans; and ...

Dynamic computed tomography (CT) and real-time/pulsed Doppler ultrasonography were performed in 13 patients following a distal end-to-side splenorenal shunt (Warren procedure). The results were correlated with angiography. The anastomotic site was demonstrated by CT in all patients. Coincident enhancement of the distal splenic vein and left renal vein as demonstrated ...

Contrast-enhanced dynamic computed tomography (CT) with table incrementation between scans was used to evaluate the hila in 100 patients without hilar abnormality and 15 patients with hilar pathology. This method of hilar evaluation was found to be superior to conventional CT because hilar vascular structures could be clearly opacified. Opacification ...

Thirty-two patients with hepatocellular carcinoma less than 5 cm in diameter were examined by computed tomography. At the examination 26 patients (81%) were correctly diagnosed. A common type of CT image series was detectable as low density on the precontrast scan, a positive or mixed pattern on dynamic scan, and ...

Nineteen patients with clinically proven hepatocellular carcinoma were studied by dynamic computed tomographic (CT) scanning. Ten consecutive 3 sec scans were performed within 30 sec, providing uninterrupted data collection. Dynamic CT scanning was useful in recognizing tumor vascularity, multiple small tumors, isodense tumors on conventional CT scans, the capsule of ...

Dynamic sequential computed tomographic scanning with automatic table incrementation uses low milliampere-second technique to eliminate tube cooling delays between scanning slices and, thus, markedly shortens examination times. A total of 25 patients with spinal column trauma involving 28 levels were studied with dynamic scans and retrospectively reviewed. Dynamic studies were ...

Rapid sequence CT imaging provides information about the vascular anatomy (CT angiography), locates major vessels encased by tumor, and eliminates the possibility of avascular lesions in the differential diagnosis of a head and neck tumor. Furthermore the use of density-time curves allows arterial and venous time. The patterns of density-time ...

Changes in the brain in subacute sclerosing panencephalitis (SSPE) as detected on computed axial tomography (CT) have so far been insufficiently assessed. An attempt was therefore made to correlate the clinical, neuroradiological and pathological findings in 5 consecutive, unselected cases, 4 of which were somewhat atypical. It is concluded that ...

The theoretical basis for and the technique of intravenous contrast enhancement by bolus injection for dynamic CT examination of the kidney are described. The clinical applications of this method include the study of normal vascular anatomy of the kidney, congenital kidney abnormalities and form variants, space-occupying lesions, and kidney trauma. ...

Dynamic sequential scanning with table incrementation is a method of rapid computed tomographic head scanning in which a complete 10-section scan can be made in 2 minutes 40 seconds or less. Although some measurable and visible loss of low-contrast resolution occurs, there is no loss of high-contrast resolution. Monthly throughput ...

Dynamic sequential 3-second CT scans of human abdominal organs were obtained after an intravenous bolus injection of diatrizoate. Time--density curves obtained from the renal cortex and medulla were compared with similar curves obtained from the aorta, inferior vena cava, muscle, and normal liver. CT scans revealed the changes in density ...

Sequential dynamic computed tomographic (CT) body scans were performed during administration of diatrizoate (intravascular bolus and infusion) in 18 cancer patients, three patients with cysts, and four rabbits with V2 carcinoma. The best diagnostic images occurred soon after the bolus was given (within 60--90 sec.). Tumors and normal tissue became ...

By sequential CT scanning, the dynamics of intravenously injected contrast medium were observed in 21 patients with abdominal malignancies. Within 30 sec, and one breath, four sequential cuts of the same section were obtained. The corticomedullary junction of the kidney was clearly delineated in the early phase, and tumor vascularity ...

This study of pathological lacrimal systems demonstrated the usefulness and sensitivity of dynamic lacrimal scintigraphy (dynamic use of computer assisted gamma camera). The method was very sensitive; even small lacrimal obstructions caused a distinct change of the outflow curves. This technique complements other tests in lacrimal assessment especially in patients ...

Recent software additions to a CT scanner with a continuously rotating tube-detector system allow uninterrupted data collection after rapid intravenous contrast material injection. The highly flexible computer program can accommodate as many as 16 consecutive 3 sec scans, or various time intervals can be inserted between individual scans. A variety ...

The performance of 16 consecutive, 3 sec computed tomographic (CT) scans, after the intravenous administration of a bolus of diatrizoate, was found to be useful in evaluating vascular anatomy and organ perfusion in this study. It also appeared to be useful in lesion detection and in accurately defining the extent ...

The use of a pedobarograph for gait studies offer a rapid method to obtain instantaneous, two-dimensional images of foot-loading, which can be made available immediately to the clinician for qualitative inspection. The system can also produce quantitative results with a dynamic bandwidth sufficient for the study of most features of ...

The flow study and static images of the brain scans of two patients with plasmacytoma of the skull were identical to the pattern most commonly seen with meningioma. There was a prominent blush on dynamic imaging which did not wash out combined with an intense uptake on static views adjacent ...

Dynamic enhancement of astrocytomas has been investigated with CT following infusion of contrast medium. The areas of measurement corresponded with obtained stereotactic biopsies. The resulting types of enhancement are discussed in terms of a 3-compartment model. Great differences exist in the degree of enhancement of astrocytomas of grade I to ...

Eleven patients with angiographically and/or pathologically verified cerebral sinovenous occlusions not directly caused by trauma were studied by computed cranial tomography (CCT). Static radionuclide brain scans and dynamic radionuclide flow studies were also obtained in four patients; in two, findings diagnostic of lateral sinus thrombosis were noted. These comprised a ...

Ultrasonic measurements of fetal biparietal diameter (BPD) obtained by the Real Time scanning (Dynamic Section Scan) and conventional compound scanning (Static Section Scan) in twenty patients were compared. A comparison between two operators, one of whom was relatively inexperienced, was also made, both measuring the same BPDs. The mean variance ...

A technique is described which, by exact timing of injection and computed tomography (CT) scans, allows a high contrast medium concentration in blood (14 mg iodine/ml blood) to be reached for a brief period, sufficient for a fast scan of 5 to 10 sec duration. This scan demonstrates the early ...

The shielding requirements for dynamic vertex cranial imaging with a scintillation camera have led to the development of a new shielding device which eliminates Compton scattered false counts by shielding both the camera detector and the cranium from extracranial activity and has proved to be effective and easy to use ...

Dynamic images and arteriograms were reviewed in patients with proved primary and secondary malignant intracranial neoplasms. In 44% of the patients with glioblastomas and 23% of those with metastatic lesions, radioactivity appeared early in the dynamic imaging sequence. This was related to the presence of arteriovenous shunting on arteriography rather ...