The Comparison of the Results of Ultrasound, CT and MRI in the Diagnosis  of Angiomyolipoma Kidneys, Including Complicated by Development  of the Syndrome Wunderlich

Purpose: Analysis the effectiveness of various methods of radiation studies for the detection of renal angiomyolipomas (RAMLs), including the diagnosis of Wunderlich syndrome. Material and methods: The analysis of the results of a comprehensive radiation study of the kidneys of 115 patients who were diagnosed with focal formation in primary renal ultrasound was carried out. Further, of those 115 people, 47 patients underwent MRI of the kidneys, 60 patients – CT and 8 patients complex MRI+CT, including contrast-enhanced vasculature. Results and discussion: Angiomyolipoma was detected by ultrasound in 38 (33.0 %) of 115 patients, and according to MRI and CT in total in 27 (23.5 %) patients. Coincidence of ultrasound findings and MRI and CT results was in 18 patients. Consequently, the sensitivity of ultrasound in the diagnosis of RAML was compared with MRI – 45 %; when compared with CT – 42.8 %, and specificity – 55 % and 57.1 %, respectively. Reliable signs of RAML in ultrasound were hyperechogenic homogeneous structure, clear smooth contours of the formation. The rounded form of education is statistically unreliable. Statistically significant characteristics of RAML in magnetic resonance imaging are heterogeneous structure, heterogeneous hyperintense MR-signal on T1 and heterogeneously hypointensity on T2-weighted images, always uniformly hypo-Fs for T1 / T2 Fs, with hypo clear boundary between education and renal parenchyma on T1 in the opp phase. Reliable signs of RAML with CT are non-uniform structure of education, with non-uniform x-ray density. Conclusion: Ultrasound diagnosis is necessary for screening kidney disease, while CT and MRI have greater sensitivity and specificity to determine the nature of focal formation. With the development of Wunderlich’s syndrome, a complex of radiological methods, including ultrasound, MRI and CT, allows to diagnose the cause of hemorrhage, as well as to obtain complete diagnostic information necessary for the surgeon to plan treatment.

Download Full-text

Contrast-enhanced ultrasound findings with Sonazoid for evaluation of neoadjuvant chemotherapy for breast cancer

Choonpa Igaku ◽

10.3179/jjmu.40.167 ◽

2013 ◽

Vol 40 (2) ◽

pp. 167-174 ◽

Cited By ~ 2

Author(s):

Yukio MITSUZUKA ◽

Shinsaku KANAZAWA ◽

Hideaki OGATA ◽

Kenichi MARUYAMA ◽

Tsuneyoshi YAKUWA ◽

...

Keyword(s):

Breast Cancer ◽

Neoadjuvant Chemotherapy ◽

Contrast Enhanced Ultrasound ◽

Contrast Enhanced ◽

Ultrasound Findings

Download Full-text

Inflammatory pseudotumor of the spleen: report of a case with emphasis on contrast-enhanced ultrasound findings

Journal of Medical Ultrasonics ◽

10.1007/s10396-006-0097-8 ◽

2006 ◽

Vol 33 (3) ◽

pp. 177-180

Author(s):

Hitoshi Yagisawa ◽

Hideaki Ishida ◽

Tomoya Komatsuda ◽

Kayoko Furukawa ◽

Mamiko Yamada ◽

...

Keyword(s):

Inflammatory Pseudotumor ◽

Contrast Enhanced Ultrasound ◽

Contrast Enhanced ◽

Ultrasound Findings

Download Full-text

MO336RENAL CONTRAST-ENHANCED ULTRASOUND (CEUS) TO EVALUATE EARLY AND CHRONIC MODIFICATIONS OF RENAL PERFUSION AND TO PREDICT RENAL DYSFUNCTION AFTER RENAL ISCHEMIA-REPERFUSION IN MICE

Nephrology Dialysis Transplantation ◽

10.1093/ndt/gfab084.009 ◽

2021 ◽

Vol 36 (Supplement_1) ◽

Author(s):

Maxime Schleef ◽

Delphine Baetz ◽

Christelle Leon ◽

Bruno Pillot ◽

Gabriel Bidaux ◽

...

Keyword(s):

Renal Function ◽

Ischemia Reperfusion ◽

Renal Perfusion ◽

Renal Ischemia ◽

Renal Ultrasound ◽

Mechanical Index ◽

Contrast Enhanced Ultrasound ◽

Serum Urea ◽

Non Invasive ◽

Contrast Enhanced

Abstract Background and Aims Renal ischemia-reperfusion can lead to acute kidney injury (AKI), increasing the risk of developing chronic kidney disease (CKD) through inflammation and vascular lesions. Serum urea or creatinine level routinely used as diagnostic indices of renal function are always delayed from the onset of the disease. Therefore, we currently lack reliable markers to early detect AKI, especially in animals. We aimed to show that non-invasive renal contrast-enhanced ultrasound (CEUS) could be a reliable tool to assess early and chronic changes of renal perfusion after renal ischemia-reperfusion. Method Male C57BL6 mice underwent 15 minutes of unilateral renal ischemia by clamping of the left renal vascular pedicle (n = 7), or a sham procedure (n = 3), under inhaled general anesthesia by Sevoflurane. A renal ultrasound was performed on the left ischemic kidney at baseline 1 week before the surgery, then, 20 minutes after reperfusion to assess early modifications of renal perfusion, and 1 month after reperfusion to follow chronic modifications. CEUS was performed in supine position by using a high-resolution ultrasonic imaging system (VEVO 3100 Fujifilm Visualsonics, Toronto, Canada) with a MX550D probe fixed in place with an iron support, ensuring the constant imaging plane throughout acquisition. First, a continuous infusion of microbubbles (VS-11913, Fujifilm Visualsonics, Toronto, Canada) was done through the tail vein, then a high mechanical index burst was given to destroy microbubbles when the contrast enhancement had reached a steady state, and finally, low mechanical-index imaging mode was used until, and 30 sec after the contrast agent concentration reached the plateau. Images were recorded and were analyzed using the “destruction-replenishment” fitting model of the Vevo LAB software (Fujifilm Visualsonics, Toronto, Canada). Renal perfusion was estimated by the total renal Blood Volume (rBV) parameter and was expressed as percentage of the baseline value for each animal. Renal function was also assessed by serum urea concentration 1 month after reperfusion, and the long axis lengths of both the kidneys were measured ex vivo after the mice were euthanized. Results Renal perfusion of the ischemic kidney measured by CEUS was significantly decreased as soon as 20 minutes of reperfusion compared to baseline (median 28,8% of baseline value; interquartiles [20,1 – 69,8%]). 1 month after reperfusion, renal perfusion recovered partially but was still significantly decreased compared to baseline (median 79,9% of baseline value; interquartiles [52,8 – 99,9%]) (Figure A). In sham operated mice, renal perfusion did not differ from baseline at 20 minutes or 1 month (p > 0.05). The renal function, assessed by serum urea, was mildly but significantly impaired 1 month after ischemia-reperfusion compared with sham (median serum urea 9,8 vs. 7,6 mmol/L) (p = 0.02), and this was consistent with the observed kidney atrophy in the ischemic group when compared to the contralateral kidney (median long axis length 7,5 vs 10,8 mm) (p = 0.03). Moreover, the decrease of renal perfusion 20 minutes after reperfusion was significantly correlated with the impairment of renal perfusion 1 month after reperfusion (Pearson r = 0.836, p = 0.005) and with the serum urea level at 1 month (Pearson r = -0.710, p = 0.03) (Figure B-C). Conclusion Renal CEUS was able to detect early impairment of renal perfusion as soon as 20 minutes after 15 minutes of renal ischemia in mice, and perfusion was still decreased 1 month after reperfusion, compared to baseline. This early impairment of perfusion was correlated with the chronic decrease of renal perfusion and renal function 1 month after reperfusion. This was also associated with a significant kidney atrophy. CEUS is an interesting non-invasive tool to assess renal lesions dynamically after ischemia-reperfusion.

Download Full-text

Comparison of F18-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography and Dynamic Contrast-Enhanced Magnetic Resonance Imaging as Markers of Graft Viability in Anterior Cruciate Ligament Reconstruction

The American Journal of Sports Medicine ◽

10.1177/0363546518805092 ◽

2018 ◽

Vol 47 (1) ◽

pp. 88-95 ◽

Cited By ~ 2

Author(s):

Siva Srivastava Garika ◽

Anshul Sharma ◽

Abdul Razik ◽

Akshima Sharma ◽

Ravindra Mohan Pandey ◽

...

Keyword(s):

Fdg Pet ◽

Cruciate Ligament ◽

Acl Graft ◽

Positron Emission ◽

Contrast Enhanced ◽

Pet Ct ◽

Anterior Cruciate ◽

Fdg Pet Ct ◽

Ct And Mri

Background: F18-fluorodeoxyglucose positron emission tomography/computed tomography (F18-FDG PET/CT) can be used to assess changes in the metabolism of an anterior cruciate ligament (ACL) graft as it is undergoing “ligamentization.” Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is the preferred modality for noninvasive assessment of graft structure and graft vascularity. Purpose: To compare the use of F18-FDG PET/CT and DCE-MRI to assess ligamentization within the ACL graft and correlate the results with clinical tests. Study Design: Case series; Level of evidence, 4. Methods: Among 30 recruited patients, 27 patients (3 females and 24 males) completed 2 follow-up assessments at a mean of 125 ± 22 days and 259 ± 38 days after arthroscopic ACL reconstruction. At both assessments, anterior drawer test, Lachman test, and Lysholm scoring (LS) were conducted. Images from F18-FDG PET/CT and MRI were analyzed qualitatively and quantitatively (maximum standardized uptake value [SUVmax], SUVmax ratio to the contralateral side [SUVmax CL], normalized enhancement [NE]) in 3 zones: femoral, intra-articular (IA), and tibial. Of the 27 recruited patients, 1 patient had reinjury due to a fall. Therefore, 26 patients were considered for the final analysis. Results: A significant improvement ( P = .0001) was found in median LS, from 78.5 (range, 62-90) to 94.5 (range, 84-100), at the second follow-up. All grafts were found to be viable on PET/CT and vascularized on MRI. All grafts were seen as continuous on MRI, with exception of 1 graft at the second follow-up. Dynamic MRI identified single-vessel supply to all of the grafts at the first follow-up and multiple-vessel supply in 10 patients at the second follow-up. Reduction in the median SUVmax, SUVmax CL, and NE at second follow-up was seen in all 3 zones. Only SUVmax CL in the IA zone showed a significant reduction ( P = .032); patients with excellent LS at the second follow-up showed significantly higher reduction ( P = .005) than patients with good LS. NE in the IA zone was correlated (0.39; P = .048) with LS only at the first follow-up, whereas SUVmax CL (–0.52; P = .006) and SUVmax (–0.49, P = .010) in the IA zone negatively correlated with LS at the second follow-up only. No correlation was observed between PET/CT and MRI parameters. Conclusion: Glucose metabolism and vascularity in the graft tissue can be used to assess ligamentization of ACL graft. A viable and vascularized graft at first follow-up is associated with good to excellent final outcome, regardless of LS at this stage. Since no correlation was observed between PET/CT and MRI parameters, they may be assessing different domains of the same process. Higher NE in the IA zone at the first follow-up and lower SUVmax CL in the same region at second follow-up are associated with better outcome.

Download Full-text

A Case of Schwannoma of the Submandibular Region

The Open Dentistry Journal ◽

10.2174/1874210601812010012 ◽

2018 ◽

Vol 12 (1) ◽

pp. 12-18 ◽

Cited By ~ 1

Author(s):

Babatunde O. Bamgbose ◽

Akiko Sato ◽

Yoshinobu Yanagi ◽

Miki Hisatomi ◽

Yohei Takeshita ◽

...

Keyword(s):

Diagnostic Imaging ◽

Hypoglossal Nerve ◽

Salivary Gland Tumor ◽

Dynamic Mri ◽

Final Diagnosis ◽

Mr Images ◽

Submandibular Region ◽

Contrast Enhanced ◽

Mobile Mass ◽

Ct And Mri

Background:We herein described a rare case of schwannoma of the hypoglossal nerve in the submandibular region with diagnostic imaging and histopathological findings.Case Report:A 31-years-old woman has had a palpable firm, rubbery, freely mobile mass in the submandibular region. Of imaging, MR images showed homogeneous isointensity on T1-weighted imaging (T1-WI), heterogeneous hypointensity on T2-WI, heterogeneous hyperintensity on short T1 inversion recovery (STIR), and heterogeneous enhancement on contrast-enhanced T1-WI. A clear capsule was observed on the margin and showed hypointense on T2-WI. Dynamic MRI showed heterogeneous gradual increased enhancement. The uptake of contrast medium was regionally slow. Diagnostic imaging using CT and MRI was suspected of salivary gland tumor or neurogenic tumor. In consideration of imaging diagnosis, a pleomorphic adenoma or a schwannoma was suspected. Final diagnosis was confirmed on the basis of histopathological finding and intraoperative findings.Conclusion:1. Histopathologic examination is inevitable, because MR findings are not specific.2. Schwannomas were said to have specific MRI properties, including specific signs (split-fat sign, fascicular sign, target sign). However, they are not always observed.3. This case confirmed the differential diagnosis on the basis of the intraoperative finding that the tumor was continuous with the hypoglossal nerve.

Download Full-text

Renal ultrasound findings and vesicoureteral reflux in children hospitalised with urinary tract infection

Archives of Disease in Childhood ◽

10.1136/adc.86.6.419 ◽

2002 ◽

Vol 86 (6) ◽

pp. 419-420 ◽

Cited By ~ 72

Author(s):

S Mahant

Keyword(s):

Urinary Tract Infection ◽

Urinary Tract ◽

Tract Infection ◽

Vesicoureteral Reflux ◽

Renal Ultrasound ◽

Ultrasound Findings

Download Full-text

Pulmonary Embolism Originating from a Hepatic Hydatid Cyst Ruptured into the Inferior Vena Cava: CT and MRI Findings

Case Reports in Radiology ◽

10.1155/2016/3589812 ◽

2016 ◽

Vol 2016 ◽

pp. 1-4 ◽

Cited By ~ 1

Author(s):

Necdet Poyraz ◽

Soner Demirbaş ◽

Celalettin Korkmaz ◽

Kürşat Uzun

Keyword(s):

Pulmonary Embolism ◽

Inferior Vena Cava ◽

Inferior Vena ◽

Vena Cava ◽

Liver Cyst ◽

Mri Findings ◽

Contrast Enhanced ◽

Magnetic Resonance Imaging Mri ◽

Enhanced Computed Tomography ◽

Ct And Mri

Pulmonary embolism due to hydatid cysts is a very rare clinical entity. Hydatid pulmonary embolism can be distinguished from other causes of pulmonary embolism with contrast-enhanced computed tomography (CECT) and magnetic resonance imaging (MRI). MRI especially displays the cystic nature of lesions better than CECT. Here we report a 45-year-old male patient with the pulmonary embolism due to ruptured hydatid liver cyst into the inferior vena cava.

Download Full-text

The Role of Lung Ultrasound Before and During the COVID-19 Pandemic: A review article

Current Medical Imaging Formerly Current Medical Imaging Reviews ◽

10.2174/1573405617666211006122842 ◽

2021 ◽

Vol 17 ◽

Author(s):

Mustafa J. Musa ◽

Mohamed Yousef ◽

Mohammed Adam ◽

Awadalla Wagealla ◽

Lubna Boshara ◽

...

Keyword(s):

Lung Ultrasound ◽

Point Of Care ◽

Power Doppler ◽

Doppler Imaging ◽

Point Of Care Ultrasound ◽

Institute Of Medicine ◽

Pubmed Central ◽

Contrast Enhanced ◽

Ultrasound Findings

: Lung ultrasound [LUS] has evolved considerably over the last years. The aim of the current review is to conduct a systematic review reported from a number of studies to show the usefulness of [LUS] and point of care ultrasound for diagnosing COVID-19. A systematic search of electronic data was conducted including the national library of medicine, and the national institute of medicine, PubMed Central [PMC] to identify the articles depended on [LUS] to monitor COVID-19. This review highlights the ultrasound findings reported in articles before the pandemic [11], clinical articles before COVID-19 [14], review studies during the pandemic [27], clinical cases during the pandemic [5] and other varying aims articles. The reviewed studies revealed that ultrasound findings can be used to help in the detection and staging of the disease. The common patterns observed included irregular and thickened A-lines, multiple B-lines ranging from focal to diffuse interstitial consolidation, and pleural effusion. Sub-plural consolidation is found to be associated with the progression of the disease and its complications. Pneumothorax was not recorded for COVID-19 patients. Further improvement in the diagnostic performance of [LUS] for COVID-19 patients can be achieved by using elastography, contrast-enhanced ultrasound, and power Doppler imaging.

Download Full-text