22 February 2002
Dynamic MR imaging of soft tissue tumors with assessment of the rate and characterof lesion enhancement.
Małgorzata TacikowskaMed Sci Monit 2002; 8(2): MT31-35 :: ID: 420925
Abstract
BACKGROUND: The aim of this study was to analyze the diagnostic usefulnessof dynamic MRI with determination of the coefficient of enhancement rate and the character of tumor enhancement,and to assess both parameters in the differentiation of malignant lesions. MATERIAL/METHODS: The materialconsisted of 45 patients (30 sarcomas, 15 non-malignant lesions), age 16-64 years. MRI was done usingan Elscint 2T unit, gradient echo techniques, apex angle 80 degrees. The repetition time (TR) was 80-200ms, the echo time (TE) was 2-6 ms, 1 excitation; the acquisition time (TA) was 70-80 ms. The coefficientof tissue enhancement rate was calculated in the region of interest, and expressed as percent per second(erc%/s). The limit value of erc%/s was determined. The sensitivity and specificity of MRI were calculatedin the differentiation of malignant tumors. The method of contrast filling of the tumors was assessedin successive phases after administration of gadolinium Gd-DTPA. RESULTS: Dynamic MRI with determinationof the index of tumor enhancement rate is highly sensitive (93%) and specific (73%) in the differentiationof malignant and benign lesions. The usefulness of the assessment of tumor enhancement character wasnot confirmed, since the sensitivity and specificity were 73% and 33%. Dynamic MRI with determinationof erc%/s and tumor enhancement character is highly sensitive (93%) and specific (87%). CONCLUSIONS:Dynamic MRI with determination of erc%/s and tumor enhancement character is the best method for differentialdiagnosis.
Keywords: Adolescent, Magnetic Resonance Imaging, Soft Tissue Neoplasms
Editorial
01 April 2024 : Editorial
Editorial: Forty Years of Waiting for Prevention and Cure of HIV Infection – Ongoing Challenges and Hopes for Vaccine Development and Overcoming Antiretroviral Drug ResistanceDOI: 10.12659/MSM.944600
Med Sci Monit 2024; 30:e944600
In Press
06 Mar 2024 : Clinical Research
Comparison of Outcomes between Single-Level and Double-Level Corpectomy in Thoracolumbar Reconstruction: A ...Med Sci Monit In Press; DOI: 10.12659/MSM.943797
21 Mar 2024 : Meta-Analysis
Economic Evaluation of COVID-19 Screening Tests and Surveillance Strategies in Low-Income, Middle-Income, a...Med Sci Monit In Press; DOI: 10.12659/MSM.943863
10 Apr 2024 : Clinical Research
Predicting Acute Cardiovascular Complications in COVID-19: Insights from a Specialized Cardiac Referral Dep...Med Sci Monit In Press; DOI: 10.12659/MSM.942612
06 Mar 2024 : Clinical Research
Enhanced Surgical Outcomes of Popliteal Cyst Excision: A Retrospective Study Comparing Arthroscopic Debride...Med Sci Monit In Press; DOI: 10.12659/MSM.941102
Most Viewed Current Articles
17 Jan 2024 : Review article
Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron VariantDOI :10.12659/MSM.942799
Med Sci Monit 2024; 30:e942799
14 Dec 2022 : Clinical Research
Prevalence and Variability of Allergen-Specific Immunoglobulin E in Patients with Elevated Tryptase LevelsDOI :10.12659/MSM.937990
Med Sci Monit 2022; 28:e937990
16 May 2023 : Clinical Research
Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...DOI :10.12659/MSM.940387
Med Sci Monit 2023; 29:e940387
01 Jan 2022 : Editorial
Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...DOI :10.12659/MSM.935952
Med Sci Monit 2022; 28:e935952