scholarly journals Acute Focal Bacterial Nephritis: Two Cases and Review of the Literature

2019 ◽  
Vol 6 ◽  
pp. 205435811988431
Author(s):  
Adnane Guella ◽  
Arshee Khan ◽  
Dima Jarrah
Keyword(s):  
Computed Tomography ◽  
Clinical Presentation ◽  
Renal Scarring ◽  
Lessons Learned ◽  
Antibiotic Administration ◽  
Contrast Enhanced ◽  
Enhanced Computed Tomography ◽  
Acute Focal Bacterial Nephritis ◽  
Contrast Enhanced Computed Tomography ◽  
Worse Prognosis

Rationale: Acute focal bacterial nephritis (AFBN) has mainly been reported in pediatrics. It may be an underdiagnosed condition in adults because it resembles acute pyelonephritis (APN) in its clinical presentation. Presenting concerns of the patients: Two young women (25 and 27 years old, respectively) presented with complaints compatible with a diagnosis of APN. However in both, fever was of high grade, persistent for several days in spite of antibiotic administration, and there was demonstrated worsening of the inflammatory biomarkers. A contrast-enhanced computed tomography (CECT) led to the diagnosis in both cases. Diagnoses: Contrast-enhanced computed tomography reveals the most sensitive and specific images of AFBN. This includes wedge-shaped lesions with decreased enhancement, which may be focal or multifocal. Interventions (including prevention and lifestyle): Antibiotic therapy for at least 3 weeks. Outcomes: Resolution of AFBN was obtained after 3 weeks of antibiotics. Lessons learned: Our 2 cases illustrate the importance of CECT imaging to confirm the diagnosis of AFBN. Interstitial bacterial inflammation may have a worse prognosis if not diagnosed early and efficiently treated. Unlike APN, the management of AFBN requires at least 3 weeks of antibiotics to prevent the development of renal scarring and renal abscess.

scholarly journals Stump appendicitis

2020 ◽  
Vol 7 (7) ◽  
pp. 2461
Author(s):  
Ketan Vagholkar
Keyword(s):  
Computed Tomography ◽  
Acute Appendicitis ◽  
Clinical Presentation ◽  
Abdominal Operation ◽  
Diagnosis And Management ◽  
Stump Appendicitis ◽  
Contrast Enhanced ◽  
The World ◽  
Enhanced Computed Tomography ◽  
Contrast Enhanced Computed Tomography

Appendectomy is one of the commonest abdominal operation performed all over the world. Stump appendicitis is one of the uncommon complications of appendectomy. The diagnosis of stump appendicitis is delayed due to low index of suspicion by virtue of the fact that an appendectomy has already been done. The clinical presentation exactly simulates acute appendicitis. Contrast enhanced computed tomography is diagnostic. Completion appendectomy either open or laparoscopic is the mainstay of treatment. Awareness regarding the possible aetiology, diagnosis and management is essential for avoiding delay in the diagnosis.

scholarly journals Porcine Ex Vivo Liver Phantom for Dynamic Contrast-Enhanced Computed Tomography

2011 ◽  
Vol 46 (9) ◽  
pp. 586-593 ◽  
Author(s):  
Scott M. Thompson ◽  
Juan C. Ramirez-Giraldo ◽  
Bruce Knudsen ◽  
Joseph P. Grande ◽  
Jodie A. Christner ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ex Vivo ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced ◽  
Enhanced Computed Tomography ◽  
Liver Phantom ◽  
Contrast Enhanced Computed Tomography

scholarly journals Contrast enhanced computed tomography findings in 105 horse distal extremities.

2021 ◽  
pp. 103704
Author(s):  
Frederik Pauwels ◽  
Angela Hartmann ◽  
John Al-Alawneh ◽  
Paul Wightman ◽  
Jimmy Saunders
Keyword(s):  
Computed Tomography ◽  
Contrast Enhanced ◽  
Enhanced Computed Tomography ◽  
Contrast Enhanced Computed Tomography

scholarly journals Self-navigated 3D whole-heart MRA for non-enhanced surveillance of thoracic aortic dilation: a comparison to CTA

2021 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
P Poskaite ◽  
M Pamminger ◽  
C Kranewitter ◽  
C Kremser ◽  
M Reindl ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Image Quality ◽  
Aortic Aneurysm ◽  
Thoracic Aortic Aneurysm ◽  
Aortic Dilation ◽  
Subjective Image Quality ◽  
Contrast Enhanced ◽  
Whole Heart ◽  
Enhanced Computed Tomography ◽  
Contrast Enhanced Computed Tomography

Abstract Funding Acknowledgements Type of funding sources: None. Background The natural history of thoracic aortic aneurysm (TAA) is one of progressive expansion. Asymptomatic patients who do not meet criteria for repair require conservative management including ongoing aneurysm surveillance, mostly carried out by contrast-enhanced computed tomography angiography (CTA). Purpose To prospectively compare image quality and reliability of a prototype non-contrast, self-navigated 3D whole-heart magnetic resonance angiography (MRA) with contrast-enhanced computed tomography angiography (CTA) for sizing of thoracic aortic aneurysm (TAA). Methods Self-navigated 3D whole-heart 1.5 T MRA was performed in 20 patients (aged 67 ± 8.6 years, 75% male) for sizing of TAA; a subgroup of 18 (90%) patients underwent additional contrast-enhanced CTA on the same day. Subjective image quality was scored according to a 4-point Likert scale and ratings between observers were compared by Cohen’s Kappa statistics. Continuous MRA and CTA measurements were analyzed with regression and Bland-Altman analysis. Results Overall subjective image quality as rated by two observers was 1 [interquartile range (IQR) 1-2] for self-navigated MRA and 1.5 [IQR 1-2] for CTA (p = 0.717). For MRA a perfect inter-observer agreement was found for presence of artefacts and subjective image sharpness (κ=1). Subjective signal inhomogeneity correlated highly with objectively quantified inhomogeneity of the blood pool signal (r = 0.78-0.824, all p <0.0001). Maximum diameters of TAA as measured by self-navigated MRA and CTA showed excellent correlation (r = 0.997, p < 0.0001) without significant inter-method bias (bias -0.0278, lower and upper limit of agreement -0.74 and 0.68, p = 0.749). Inter- and intraobserver correlation of aortic aneurysm as measured by MRA was excellent (r = 0.963 and 0.967, respectively) without significant bias (all p ≤ 0.05). Conclusion Self-navigated 3D whole-heart MRA enables reliable contrast- and radiation free aortic dilation surveillance without significant difference to standardized CTA while providing predictable acquisition time and by offering excellent image quality. Abstract Figure.

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