Oral administration of iopentol (Imagopaque® 300 mg I/ml) compared with amidotrizoate (Peritrast® 300 mg I/ml), both diluted to 2 % (v/v), in imaging of the gastrointestinal tract in abdominal contrast enhanced CT A clinical trial assessing patient tolerance, distribution of contrast medium and Hounsfield unit measurements

1997 ◽  
Vol 7 (S4) ◽  
pp. S140-S144 ◽  
Author(s):  
J. M. Friedrich ◽  
K. Skinningsrud ◽  
C. Welter ◽  
H. Eide ◽  
E. Merkle
Keyword(s):  
Clinical Trial ◽  
Gastrointestinal Tract ◽  
Oral Administration ◽  
Contrast Medium ◽  
Hounsfield Unit ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Patient Tolerance ◽  
Enhanced Ct ◽  
Tolerance Distribution

Nephrotoxic Polypharmacy and Risk of Contrast Medium–Induced Nephropathy in Hospitalized Patients Undergoing Contrast-Enhanced CT

2015 ◽  
Vol 205 (4) ◽  
pp. 703-708 ◽  
Author(s):  
Yunn-Fang Ho ◽  
Kun-Lin Hsieh ◽  
Fan-Lu Kung ◽  
Fe-Lin Lin Wu ◽  
Ling-Ling Hsieh ◽  
...  
Keyword(s):  
Contrast Medium ◽  
Hospitalized Patients ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

scholarly journals Diagnostic imaging characteristics of ureteral pseudodiverticulosis in three dogs

2018 ◽  
Vol 63 (No. 8) ◽  
pp. 373-378
Author(s):  
S. Lim ◽  
S. Sung ◽  
K. Min ◽  
Y. Cho ◽  
Y. Jung ◽  
...  
Keyword(s):  
Contrast Medium ◽  
Excretory Urography ◽  
Inclusion Criteria ◽  
Radiographic Findings ◽  
Computed Tomographic ◽  
Imaging Characteristics ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

Ureteral pseudodiverticulosis is rarely reported in veterinary medicine. This case study aimed to describe the radiographic, ultrasonographic and computed tomographic findings for dogs with radiologically confirmed ureteral pseudodiverticulosis. Three dogs met the inclusion criteria. Radiographic findings included multiple small, round-shaped mineral opacities located around the periphery of the ureters (3/3), and multiple contrast medium-filled outpouchings that appeared and disappeared when the contrast medium washed in and out on intravenous excretory urography (2/3). The outpouchings were approximately 1 mm in diameter. In the ultrasonographic images, the mineral foci were located adjacent to the ureter, but not within the ureteral lumen (1/3). Contrast-enhanced CT findings were similar to those of excretory urography (2/3). Ureteral pseudodiverticulosis should be considered in the differential diagnosis for old-aged and small-breed dogs with radiopaque materials along the ureteral pathways; excretory urography or contrast-enhanced CT are recommended for a more definitive imaging diagnosis.

What is the underestimation of radiation dose to the pediatric thyroid gland from contrast enhanced CT, if contrast medium uptake is not taken into account?

2018 ◽  
Vol 49 ◽  
pp. 95-98 ◽  
Author(s):  
Kostas Perisinakis ◽  
Styliani Pouli ◽  
Antonis Tzedakis ◽  
Kostas Spanakis ◽  
Adam Hatzidakis ◽  
...  
Keyword(s):  
Thyroid Gland ◽  
Radiation Dose ◽  
Contrast Medium ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

scholarly journals Gastric Bezoar - A Rare Presentation in Infant

2016 ◽  
Vol 6 (1) ◽  
pp. 24-27
Author(s):  
MTH Siddiqui ◽  
Mohammad Mahabubul Alam ◽  
AM Shahinur ◽  
AKM Zahid Hossain ◽  
Gazi Zahirul Hasan
Keyword(s):  
Differential Diagnosis ◽  
Ct Scan ◽  
Contrast Medium ◽  
Medium Study ◽  
Rare Presentation ◽  
Contrast Enhanced Ct ◽  
Gastric Bezoar ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Upper Abdominal

Gastric bezoar in neonate is a rare presentation. Because of rarity of phytobezoar and lactobezoar are not considered as the differential diagnosis of a lump and vomiting commonly. A 7 month female presented with left upper abdominal undifferentiated hard mobile lump and post prandial occasional vomiting. Diagnosis was non-conclusive with USG, contrast medium study of stomach and duodenum and contrast enhanced CT scan. After laparotomy and gastrostomy mass was removed and diagnosed as phytolactobezoar on macroscopic appearance.J. Paediatr. Surg. Bangladesh 6(1): 24-27, 2015 (Jan)

Iso-Osmolality versus Low-Osmolality Iodinated Contrast Medium at Intravenous Contrast-enhanced CT: Effect on Kidney Function

Radiology ◽  
2008 ◽  
Vol 248 (1) ◽  
pp. 97-105 ◽  
Author(s):  
Shaun A. Nguyen ◽  
Pal Suranyi ◽  
James G. Ravenel ◽  
Patrick K. Randall ◽  
Peter B. Romano ◽  
...  
Keyword(s):  
Contrast Medium ◽  
Kidney Function ◽  
Intravenous Contrast ◽  
Iodinated Contrast Medium ◽  
Iodinated Contrast ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

scholarly journals Glomus Tumor of the Duodenum

2020 ◽  
Vol 20 (4) ◽  
pp. 328-331
Author(s):  
Tae Kyoung Ha ◽  
Gwang Ha Kim ◽  
Moon Won Lee ◽  
Bong Eun Lee ◽  
Young Min Kwak ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Benign Tumor ◽  
Glomus Tumor ◽  
Vascular Wall ◽  
Arteriovenous Anastomosis ◽  
Health Checkup ◽  
Glomus Tumors ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

Glomus tumor is a benign tumor derived from the vascular wall of the arteriovenous anastomosis complex. Glomus tumors in the gastrointestinal tract are rare, especially those in the duodenum. Most gastrointestinal glomus tumors are found incidentally on endoscopy during routine health checkup and sometimes because of bleeding. We experienced a case of duodenal glomus tumor diagnosed after surgical resection of an incidental subepithelial tumor in the duodenum. Herein, we report the characteristic endoscopic ultrasonography, contrast-enhanced CT, and histopathological findings of duodenal glomus tumor.

Effects of tube voltage and iodine contrast medium on radiation dose of whole-body CT

2021 ◽  
pp. 028418512110015
Author(s):  
Morikatsu Yoshida ◽  
Takeshi Nakaura ◽  
Seitaro Oda ◽  
Masafumi Kidoh ◽  
Yasunori Nagayama ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Contrast Medium ◽  
Tube Voltage ◽  
Organ Doses ◽  
Low Contrast ◽  
Ct Dose ◽  
Low Tube Voltage ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

Background The low-tube-voltage scan generally needs a higher tube current than the conventional 120 kVp to maintain the image noise. In addition, the low-tube-voltage scan increases the photoelectric effect, which increases the radiation absorption in organs. Purpose To compare the organ radiation dose caused by iodine contrast medium between low tube voltage with low contrast medium and that of conventional 120-kVp protocol with standard contrast medium. Material and Methods After the propensity-matching analysis, 66 patients were enrolled including 33 patients with 120 kVp and 600 mgI/kg and 33 patients with 80 kVp and 300 mgI/kg (50% iodine reduction). The pre- and post-contrast phases were assessed in all patients. The Monte Carlo simulation tool was used to simulate the radiation dose. The computed tomography (CT) numbers for 10 organs and the organ doses were measured. The organ doses were normalized by the volume CT dose index, and the 120-kVp protocol was compared with the 80-kVp protocol. Results On contrast-enhanced CT, there were no significant differences in the mean CT numbers of the organs between 80-kVp and 120-kVp protocols except for the pancreas, kidneys, and small intestine. The normalized organ doses at 80 kVp were significantly lower than those of 120 kVp in all organs (e.g. liver, 1.6 vs. 1.9; pancreas, 1.5 vs. 1.8; spleen, 1.7 vs. 2.0) on contrast-enhanced CT. Conclusion The low tube voltage with low-contrast-medium protocol significantly reduces organ doses at the same volume CT dose index setting compared with conventional 120-kVp protocol with standard contrast medium on contrast-enhanced CT.

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