Comparison of the diagnostic value of 18F-NaF PET/CT and Tc-MDP SPECT for bone metastases: a systematic review and meta-analysis.

Background: Bone scintigraphy, the standard tool for detecting bone metastases has some insufficiencies; thus, supplementary imaging techniques are needed. This study is a comprehensive meta-analysis of studies reporting and comparing the diagnostic efficacy of 18F-sodium fluoride (18F-NaF) positron emission tomography/computed tomography (PET/CT) and Tc-MDP single-photon emission computed tomography (SPECT) for bone metastases.

Methods: Literature related to the diagnosis of bone metastases using 18F-NaF PET/CT and Tc-MDP SPECT was searched on PubMed, EMBASE, Cochrane Library, Web of Science, China National Knowledge Infrastructure (CNKI), Wanfang databases, and VIP.

Enhancing postpartum hemorrhage prediction in pernicious placenta previa: a comparative study of magnetic resonance imaging and ultrasound nomogram.

To explore the risk factors of postpartum hemorrhage (PPH) in patients with pernicious placenta previa (PPP) and to develop and validate a clinical and imaging-based predictive model. A retrospective analysis was conducted on patients diagnosed surgically and pathologically with PPP between January 2018 and June 2022. All patients underwent PPP magnetic resonance imaging (MRI) and ultrasound scoring in the second trimester and before delivery, and were categorized into two groups according to PPH occurrence.

Can quantitative parameters of spectral computed tomography predict lymphatic metastasis in lung cancer? a systematic review and meta-analysis.

Background And Purpose: This study evaluated the use of quantitative spectral computed tomography (CT) parameters to identify lymph node metastasis (LM) in lung cancer.

Materials And Methods: Literature about LM in lung cancer diagnosed using spectral CT up to September 2022 was retrieved from the PubMed, EMBASE, Cochrane Library, Web of Science, Chinese National Knowledge Infrastructure, and Wanfang databases. The literature was strictly screened according to the inclusion and exclusion criteria.

Effectiveness of a fetal magnetic resonance imaging scoring system for predicting the prognosis of pernicious placenta previa: A retrospective study.

The value of multiple magnetic resonance imaging (MRI) signs in predicting pernicious placenta previa (PPP) with placenta accreta spectrum disorders (PAS) is still controversial. This study aimed to investigate the value of a self-made fetal magnetic resonance imaging scoring system in predicting the different types of PAS in pernicious placenta previa and its associated risk of bleeding. This retrospective study included 193 patients diagnosed with PPP based on MRI findings before delivery.

Diagnostic value of F-FDG PET/CT and MRI for intraspinal lesions: A comparative study.

The aim of the present study was to investigate the value of the use of fluorine-18 (F)-fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) vs. magnetic resonance imaging (MRI) for the diagnosis of and differentiation between benign and malignant lesions in the spinal canal. For this purpose, a retrospective analysis was performed on the use of MRI and F-FDG PET/CT from January, 2017 to December, 2020, and the final diagnosis was obtained by performing a post-operative pathological examination or following a tissue biopsy (gold standard).

F-FDG PET/CT Quantitative Parameters and Texture Analysis Effectively Differentiate Endometrial Precancerous Lesion and Early-Stage Carcinoma.

Objective: This study evaluated the metabolic parameters and texture features of fluorodeoxyglucose positron emission tomography-computed tomography (PET/CT) for the diagnosis and differentiation of endometrial atypical hyperplasia (EAH), EAH with field cancerization (FC), and stage 1A endometrial carcinoma (EC 1a).

Materials And Methods: We retrospectively analyzed the metabolic parameters of PET/CT in 170 patients with diagnoses confirmed by pathology, including 57 cases of EAH (57/170, 33.53%), 45 cases of FC (45/170, 26.