Objective: To evaluate dynamic contrast-enhanced MRI in conjunction with MR subtraction in the differential diagnosis of benign and malignant breast tumors at 3 Tesla.
Methods: A total of 78 patients with breast tumors enrolled in this study, including 45 malignant lesions and 33 benign lesions verified by histopathology. Dynamic MR contrast enhanced imaging was done by T1 high resolution isotropic volume excitation sequence. MR subtraction was used to retrospectively analyze the MR dynamic image. A dynamic phase subtraction (DPS) map is a map image with pixel-by-pixel subtraction of an early-phase image from a delayed maximum enhancement phase image obtained in a dynamic study. The sensitivity and specificity were calculated with or without subtraction in the diagnosis of benign and malignant breast tumors.
Results: The sensitivity of benign breast masses increased from 0.879 to 0.939, and the specificity increased from 0.818 to 0.909 with reference to the DPS map. There was statistical difference between with or without DPS (Z=2.023, P=0.043). The sensitivity of breast malignant masses increased from 0.889 to 0.933, and the specificity increased from 0.867 to 0.911 with reference to the DPS map, with statistical difference between with or without DPS map (Z=2.294, P=0.021). The pattern of TIC changed from continuous to a plateau in 8 patients, from a plateau to washout in 10, and from continuous to washout in 5. No changes were observed in the other 55 patients.
Conclusion: MR Subtraction is a simple and useful technique to identify breast lesions. It helps to accurately set the location of the ROI TIC and improve the detection rate of benign and malignant breast tumors.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3969/j.issn.1672-7347.2013.10.004 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Evaluation of the Value of Fine Needle Aspiration Cytology and Cell Morphology in Determining the Histogenesis of Pancreatic Lesions With Review of Literature, Overview and Cytological Experience of 25 Years: Original Research.
Health Sci Rep
January 2025
Gerhard-Domagk Institute of Pathology University Hospital Muenster (UKM) Muenster Germany.
Background And Aims: Benign lesions, inflammation, cysts and pseudocysts, as well as neoplasms of the exocrine and endocrine parts of the pancreas can be easily identified using cytological methods. The sensitivity and specificity can be increased with the help of additional examination methods. The sensitivity of intraoperative rapid cytology reaches about 99%.
View Article and Find Full Text PDFThis case report is about an 84-year-old female patient with a history of high-grade serous ovarian carcinoma who was diagnosed with a renal pseudotumor. Initial imaging in February 2023 showed signs of a renal cell carcinoma and possible lung metastases. A CT-guided biopsy and histopathological analysis ruled out malignancy and confirmed a benign inflammatory pseudotumor.
View Article and Find Full Text PDFAssessment of a novel unidirectional mid-term absorbable barbed suture versus a competitor barbed suture for vaginal cuff closure after gynaecology surgery, study protocol of a randomized controlled trial - BARHYSTER.
BMC Surg
January 2025
Department of Obstetrics and Gynaecology, Krankenhaus Sachsenhausen, Frankfurt Am Main, Germany.
Background: Total laparoscopic hysterectomy (TLH) is nowadays the standard to treat benign and malignant disease occurring in the uterus, but the number of robotic-assisted surgeries is increasing worldwide. To facilitate the handling of sutures in a bi- and tri-dimensional plane, a new type of suture material has been developed, named barbed sutures, which are in use in different indications. In comparison to conventional suture materials, the barbs anchor the suture in the tissue, provide tissue approximation and prevent slippage without the need for knot tying.
View Article and Find Full Text PDFArtificial intelligence performance in ultrasound-based lymph node diagnosis: a systematic review and meta-analysis.
BMC Cancer
January 2025
The Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China.
Background And Objectives: Accurate classification of lymphadenopathy is essential for determining the pathological nature of lymph nodes (LNs), which plays a crucial role in treatment selection. The biopsy method is invasive and carries the risk of sampling failure, while the utilization of non-invasive approaches such as ultrasound can minimize the probability of iatrogenic injury and infection. With the advancement of artificial intelligence (AI) and machine learning, the diagnostic efficiency of LNs is further enhanced.
View Article and Find Full Text PDFApplication and advantage analysis of triangular gastric suspension technique in laparoscopic distal pancreatectomy.
Surg Endosc
January 2025
Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Lihuili Hospital of Ningbo University, 57 Xingning Road, Ningbo, Zhejiang, China.
Background: Laparoscopic distal pancreatectomy is a safe and effective surgical method for treating benign and malignant tumors of the pancreatic body and tail. However, laparoscopic surgery requires good intraoperative exposure, and since the pancreas is obstructed by the stomach and duodenum, making surgical operations and the management of intraoperative emergencies challenging. Therefore, gastric traction is crucial in laparoscopic distal pancreatectomy.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!