Small animal imaging provides diverse methods for evaluating tumor growth and acute response to therapy. This study compared the utility of non-invasive optical and ultrasound imaging to monitor growth of three diverse human tumor xenografts (brain U87-luc-mCherry, mammary MCF7-luc-mCherry, and prostate PC3-luc) growing in nude mice. Bioluminescence imaging (BLI), fluorescence imaging (FLI), and Power Doppler ultrasound (PD US) were then applied to examine acute vascular disruption following administration of arsenic trioxide (ATO).During initial tumor growth, strong correlations were found between manual caliper measured tumor volume and FLI intensity, BLI intensity following luciferin injection, and traditional B-mode US. Administration of ATO to established U87 tumors caused significant vascular shutdown within 2 hrs at all doses in the range 5 to 10 mg/kg in a dose dependant manner, as revealed by depressed bioluminescent light emission. At lower doses substantial recovery was seen within 4 hrs. At 8 mg/kg there was >85% reduction in tumor vascular perfusion, which remained depressed after 6 hrs, but showed some recovery after 24 hrs. Similar response was observed in MCF7 and PC3 tumors. Dynamic BLI and PD US each showed similar duration and percent reductions in tumor blood flow, but FLI showed no significant changes during the first 24 hrs.The results provide further evidence for comparable utility of optical and ultrasound imaging for monitoring tumor growth, More specifically, they confirm the utility of BLI and ultrasound imaging as facile assays of the vascular disruption in solid tumors based on ATO as a model agent.
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Am J Cancer Res
December 2024
Department of Breast Surgery, Huangpu Branch, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine Shanghai 200011, China.
Breast cancer is one of the malignant tumors that seriously threaten women's health, and early diagnosis and detection of breast cancer are crucial for effective treatment. Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is an important diagnostic tool that allows for the dynamic observation of blood flow characteristics of breast tumors, including small lesions within the affected tissue. Currently, it is widely used in clinical practice and has been shown promising prospects.
View Article and Find Full Text PDFAm J Ophthalmol Case Rep
March 2025
University of South Carolina/Prisma Health, Columbia, SC, USA.
Purpose: The purpose of this manuscript is to report a rare case of an orbital cyst detected intrauterine with sonography.
Observation: A 23-year-old female presented for routine prenatal monitoring when an orbital cyst was detected with a transabdominal ultrasound. Uncomplicated cesarean section was performed at 38 weeks gestation with proptosis of the left globe being noted on ophthalmic examination of the newborn.
J Congenit Cardiol
March 2021
Adult Congenital Heart Disease Service, University Hospitals Bristol, NHS Foundation Trust, Bristol, UK.
Background: There is no consensus on the clinical utility of 'routine' diagnostic cardiac catheterisation in patients with Fontan palliation in the absence of symptoms or haemodynamic lesions.
Objective: We sought to evaluate whether diagnostic cardiac catheterisation for a variety of indications led to a change in the clinical management of patients with a Fontan circulation.
Methods: All adult patients (≥16 years) with Fontan palliation undergoing diagnostic cardiac catheterisation at our institution from 2016 to 2019 were included retrospectively.
Taiwan J Ophthalmol
November 2024
Department of Ophthalmology, KVG Medical College and Hospital, Sullia, Karnataka, India.
Purpose: The present study aimed to assess the impact of diabetes mellitus and smoking in orbital vessels, utilizing resistive index (RI) through color Doppler imaging (CDI).
Materials And Methods: The cross-sectional study consisted of 90 participants divided into three groups of 30 each. Group A consisted of normal individuals, Group B consisted of patients with diabetes, and Group C consisted of patients with a history of diabetes and smoking.
Cureus
December 2024
Department of Pathology, General Hospital of Thessaloniki Agios Pavlos, Thessaloniki, GRC.
The term "gossypiboma" or "textiloma" is used to describe a mass of retained cotton matrix and the surrounding inflammatory response inside a body cavity following surgical intervention. The precise incidence of this phenomenon is uncertain, as cases are frequently underreported due to concerns related to medical malpractice. This rare complication poses a diagnostic dilemma due to the non-specific clinical and radiological features, which can result in significant morbidity and mortality.
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