Relationship between noise, dose, and pitch in cardiac multi-detector row CT. Segmentation performance was evaluated using 70 cases. Assessment of chest pain in the emergency room: Omission of the unenhanced scan led to a mean dose reduction of The CCP is not trivial. The objective of our study was to compare multidetector row CT and the plain radiographs for making the diagnosis and grading the sacroiliitis that accompanies ankylosing spondylitis.

Current development of cardiac imaging with multidetector -row CT. To evaluate and compare the diagnostic accuracy of multidetector computed tomography urography CTU and ultrasonography US for diagnosing bladder cancer. Advantages in splanchnic arterial imaging. Thus, PFO detection, in addition to routine CT evaluation of the lungs, could be indicated in patients with unexplained hypoxemia. Multi-detector CT knee arthrography is an accurate and elegant technique for investigation of knee pain, providing information in a format familiar to those reporting knee MRI.

In case the bladder contains regions filled with intravenous IV contrast and without contrast, CLASS segments the noncontrast NC region yrography the contrast C filled region separately and conjoins the contours. Our data showed that right-side thesiss bronchus was more common and bilateral tracheal bronchi usually occurred with heterotaxy syndrome.

Among the 25 patients with positive CAG with an EG test, all 12 patients with significant stenosis showed no definite plaque with the negative arterial remodeling.

Shorter scan times have resulted from the design of detector arrays with increasing numbers of detector rows and through the simultaneous use of two x-ray sources to allow higher helical pitch. Two groups of patients without urinary tract disease or major abdominal pathology underwent MDCTU. However, it is difficult to perform this method to all of the patients because of the technical difficulties due to patient’s condition, especially the severity of atherosclerosis. A number of new developments in cervical spine imaging have transpired since the introduction of section computed tomographic CT scanners in In conclusion, paging method on multidetector -row CT angiography provides valuable anatomical information regarding IPA.


ct urography thesis

Knowledge of the variations in renal vascular anatomy is important before laparoscopic donor or partial nephrectomy and vascular reconstruction for renal artery stenosis or abdominal aortic aneurysm.

The ureter phantom consisted of a water box 14 cm x 32 cm x 42 cm with five urogra;hy plastic tubes diameter 2. Unenhanced scans did not find typical characteristics of duplex kidney, except for irregular perirenal morphology.

ct urography thesis

Sensitivity, specificity and both negative and positive predictive value were calculated. Duplex kidney is a common anomaly that is frequently associated with multiple complications. Also in the lower the iliac crest to the sciatic notch and upper above the iliac crest ureter, furosemide had significantly higher scores than saline infusion in either position.

T 1 -weighted excretory MRU provides impressive urograms of both non-dilated and obstructed collecting systems in patients with normal or moderately impaired renal function.

The relative frequency of various positions of the appendix can also differ according to patient gender and the pathologic state.

Invasion into the perivesical fat may be revealed as infiltration or irregular fat-bladder wall interface. Mean CTU hhesis radiation dose was 9.

This goal remains elusive due, in part, to lack of a noninvasive and accurate imaging study.

multidetector ct urography: Topics by

Four experienced radiologists read the CT scans independently. The scanning parameters during the early arterial phase were 2. Recently, multidetector computed tomographic MDCT angiography has become a principal imaging urogrxphy for assessment of the renal vasculature and has challenged the role of conventional angiography. The aim of the present study hrography to assess the value of row multidetector CT in noninvasive examination of the renal vessels and ureters of potential living kidney donors.


We searched published and unpublished literature from to using a combination of search terms on electronic databases.

Diagnostic accuracy Az valuessensitivities and positive predictive values were compared by using the Scheffe post hoc test. In this article, we review the spectrum of palpable chest wall diseases and illustrate their multi-detector CT presentation.

One hundred five patients 57 men, 48 women; mean age, 53 years with a recent stroke underwent TEE and multidetector CT on the same day. Multi-detector CT knee arthrography – initial experience. Sensitivity for bladder cancer detection was 0.

Congenital coronary artery anomalies are generally incidental, uncommon and asymptomatic.

CT urography for hematuria.

This article aims to make the radiologist aware of various venous injuries caused by blunt trauma and to provide helpful hints to aid in the identification of venous injuries. Although most patients with blunt trauma are now treated nonsurgically, evolution in the understanding of spinal stability, as well as the development of new surgical techniques and hardware, has driven management strategies that are increasingly favorable toward surgical intervention.

The CCP is not trivial. Diagnostic visualization was slightly better in the intrarenal cavity areas with CTU but worsened towards distal ureter. CT is a noninvasive test that uses