Efficacy of Ultrasonography and Tc-99m MIBI SPECT/CT in Preoperative Localization of Parathyroid Adenomas Causing Primary Hyperthyroidism

2021 ◽  
Author(s):  
Ruigang Lu ◽  
Wei Zhao ◽  
Li Yin ◽  
Ruijun Guo ◽  
Bojun Wei ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Diagnostic Performance ◽  
Preoperative Localization ◽  
Clinical Value ◽  
Parathyroid Adenomas ◽  
Significant Difference ◽  
Parathyroid Lesions ◽  
The Difference ◽  
Primary Hyperthyroidism ◽  
Mibi Spect

Abstract Background: Primary hyperparathyroidism (PHPT) results from an excess of parathyroid hormone (PTH) produced from an overactive parathyroid gland. The study aimed to explore the sonographic features of parathyroid adenomas and assess the diagnostic performance of ultrasonography (US) and Tc-99m MIBI SPECT/CT for preoperative localization of parathyroid adenomas. Methods: A total of 107 patients were enrolled in this retrospective study who had PHPT and underwent parathyroidectomy. Of the 107 patients, 97 performed US and Tc-99m MIBI SPECT/CT examinations for preoperative localization of parathyroid nodules. The sensitivity and accuracy of each modality were calculated. Results: In this study, residual parathyroid sign and polar vascular sign were identified as characteristic US features of parathyroid adenomas and these manifestations are closely related to the size of the abnormal parathyroid lesions. Using 108 parathyroid nodules from 97 patients with PHPT, the sensitivity and accuracy of US in locating parathyroid nodules were significantly higher than those of Tc-99m MIBI SPECT/CT (93.0% vs. 63.0% and 88.0% vs. 63.0%), and the difference was statistically significant (c²=26.224, 18.227, P<0.001). The difference between US combined with Tc-99m MIBI SPECT/CT and Tc-99m MIBI SPECT/CT-alone was statistically significant (c²=33.410, 21.587, P<0.001), yet there was no significant difference compared with US alone (c²=0.866, 0.187, P=0.352 and 0.665). Conclusions: US shows significantly better sensitivity and accuracy for localization of parathyroid adenomas than Tc-99m MIBI SPECT/CT. However, US combined with Tc-99m MIBI SPECT/CT is of great clinical value in the preoperative localization of parathyroid nodules in patients with PHPT.

scholarly journals Efficacy of ultrasonography and Tc-99m MIBI SPECT/CT in preoperative localization of parathyroid adenomas causing primary hyperthyroidism

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ruigang Lu ◽  
Wei Zhao ◽  
Li Yin ◽  
Ruijun Guo ◽  
Bojun Wei ◽  
...  
Keyword(s):  
Parathyroid Hormone ◽  
Retrospective Study ◽  
Primary Hyperparathyroidism ◽  
Diagnostic Performance ◽  
Preoperative Localization ◽  
Clinical Value ◽  
Parathyroid Adenomas ◽  
Parathyroid Lesions ◽  
Primary Hyperthyroidism ◽  
Mibi Spect

Abstract Background Primary hyperparathyroidism (PHPT) results from an excess of parathyroid hormone (PTH) produced from an overactive parathyroid gland. The study aimed to explore the sonographic features of parathyroid adenomas and assess the diagnostic performance of ultrasonography (US) and Tc-99m MIBI SPECT/CT for preoperative localization of parathyroid adenomas. Methods A total of 107 patients were enrolled in this retrospective study who had PHPT and underwent parathyroidectomy. Of the 107 patients, 97 performed US and Tc-99m MIBI SPECT/CT examinations for preoperative localization of parathyroid nodules. The sensitivity and accuracy of each modality were calculated. Results In this study, residual parathyroid sign and polar vascular sign were identified as characteristic US features of parathyroid adenomas. These manifestations were closely related to the size of the abnormal parathyroid lesions. Among the 108 parathyroid nodules from 97 patients with PHPT, the sensitivity and accuracy of US for locating the parathyroid nodules were significantly higher than those of Tc-99m MIBI SPECT/CT (93.0% vs. 63.0% and 88.0% vs. 63.0% respectively; χ2 = 26.224, 18.227 respectively, P < 0.001). The differences between US + Tc-99m MIBI SPECT/CT and Tc-99m MIBI SPECT/CT-alone were statistically significant (χ2 = 33.410, 21.587 respectively, P < 0.001), yet there were no significant differences in the sensitivity or accuracy between US + Tc-99m MIBI SPECT/CT and US-alone (χ2 = 0.866, 0.187 respectively, P = 0.352 and 0.665). Conclusions US shows significantly better sensitivity and accuracy for localization of parathyroid adenomas than Tc-99m MIBI SPECT/CT. However, US combined with Tc-99m MIBI SPECT/CT is of great clinical value in the preoperative localization of parathyroid nodules in patients with PHPT.

scholarly journals Influence of preoperative corticosteroid treatment on rate of diagnostic surgeries in primary central nervous system lymphoma: a multicenter retrospective study

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Florian Scheichel ◽  
Franz Marhold ◽  
Daniel Pinggera ◽  
Barbara Kiesel ◽  
Tobias Rossmann ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Retrospective Study ◽  
Diagnostic Delay ◽  
Central Nervous System Lymphoma ◽  
Corticosteroid Treatment ◽  
Histopathological Diagnosis ◽  
Significant Difference ◽  
The Difference ◽  
Immunocompetent Patients

Abstract Background Corticosteroid therapy (CST) prior to biopsy may hinder histopathological diagnosis in primary central nervous system lymphoma (PCNSL). Therefore, preoperative CST in patients with suspected PCNSL should be avoided if clinically possible. The aim of this study was thus to analyze the difference in the rate of diagnostic surgeries in PCNSL patients with and without preoperative CST. Methods A multicenter retrospective study including all immunocompetent patients diagnosed with PCNSL between 1/2004 and 9/2018 at four neurosurgical centers in Austria was conducted and the results were compared to literature. Results A total of 143 patients were included in this study. All patients showed visible contrast enhancement on preoperative MRI. There was no statistically significant difference in the rate of diagnostic surgeries with and without preoperative CST with 97.1% (68/70) and 97.3% (71/73), respectively (p = 1.0). Tapering and pause of CST did not influence the diagnostic rate. Including our study, there are 788 PCNSL patients described in literature with an odds ratio for inconclusive surgeries after CST of 3.3 (CI 1.7–6.4). Conclusions Preoperative CST should be avoided as it seems to diminish the diagnostic rate of biopsy in PCNSL patients. Yet, if CST has been administered preoperatively and there is still a contrast enhancing lesion to target for biopsy, surgeons should try to keep the diagnostic delay to a minimum as the likelihood for acquiring diagnostic tissue seems sufficiently high.

scholarly journals Exploring the Value of Radiomics Features Based on B-Mode and Contrast-Enhanced Ultrasound in Discriminating the Nature of Thyroid Nodules

2021 ◽  
Vol 11 ◽  
Author(s):  
Shi Yan Guo ◽  
Ping Zhou ◽  
Yan Zhang ◽  
Li Qing Jiang ◽  
Yong Feng Zhao
Keyword(s):  
Diagnostic Performance ◽  
Thyroid Nodules ◽  
New Technologies ◽  
Statistical Significance ◽  
Characteristic Curve ◽  
Logistic Models ◽  
Contrast Enhanced Ultrasound ◽  
Clinical Value ◽  
Contrast Enhanced ◽  
Significant Difference

BackgroundWith the improvement of ultrasound imaging resolution and the application of various new technologies, the detection rate of thyroid nodules has increased greatly in recent years. However, there are still challenges in accurately diagnosing the nature of thyroid nodules. This study aimed to evaluate the clinical application value of the radiomics features extracted from B-mode ultrasound (B-US) images combined with contrast-enhanced ultrasound (CEUS) images in the differentiation of benign and malignant thyroid nodules by comparing the diagnostic performance of four logistic models.MethodsWe retrospectively collected and ultimately included B-US images and CEUS images of 123 nodules from 123 patients, and then extracted the corresponding radiomics features from these images respectively. Meanwhile, a senior radiologist combined the thyroid imaging reporting and data system (TI-RADS) and the enhancement pattern of the ultrasonography to make a graded diagnosis of the malignancy of these nodules. Next, based on these radiomics features and grades, logistic regression was used to help build the models (B-US radiomics model, CEUS radiomics model, B-US+CEUS radiomics model, and TI-RADS+CEUS model). Finally, the study assessed the diagnostic performance of these radiomics features with a comparison of the area under the curve (AUC) of the receiver operating characteristic curve of four logistic models for predicting the benignity or malignancy of thyroid nodules.ResultsThe AUC in the differential diagnosis of the nature of thyroid nodules was 0.791 for the B-US radiomics model, 0.766 for the CEUS radiomics model, 0.861 for the B-US+CEUS radiomics model, and 0.785 for the TI-RADS+CEUS model. Compared to the TI-RADS+CEUS model, there was no statistical significance observed in AUC between the B-US radiomics model, CEUS radiomics model, B-US+CEUS radiomics model, and TI-RADS+CEUS model (P&gt;0.05). However, a significant difference was observed between the single B-US radiomics model or CEUS radiomics model and B-US+CEUS radiomics model (P&lt;0.05).ConclusionIn our study, the B-US radiomics model, CEUS radiomics model, and B-US+CEUS radiomics model demonstrated similar performance with the TI-RADS+CEUS model of senior radiologists in diagnosing the benignity or malignancy of thyroid nodules, while the B-US+CEUS radiomics model showed better diagnostic performance than single B-US radiomics model or CEUS radiomics model. It was proved that B-US radiomics features and CEUS radiomics features are of high clinical value as the combination of the two had better diagnostic performance.

Effects of Orthokeratology Lens On Axial Length Elongation in Myopia With Anisometropia Children

2021 ◽  
Author(s):  
Ziyang Chen ◽  
Kai-Ming Chen ◽  
Ying Shi ◽  
Zhao-Da Ye ◽  
Sheng Chen ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Axial Length ◽  
Statistical Significance ◽  
Spherical Equivalent ◽  
Significant Difference ◽  
The Mean ◽  
The Difference ◽  
Better Than ◽  
Group 1

Abstract AimTo investigate the effect of orthokeratology (OK) lens on axial length (AL) elongation in myopia with anisometropia children.MethodsThirty-seven unilateral myopia (group 1) and fifty-nine bilateral myopia with anisometropia children were involved in this 1-year retrospective study. And bilateral myopia with anisometropia children were divided into group 2A (diopter of the lower SER eye under − 2.00D) and group 2B(diopter of the lower SER eye is equal or greater than − 2.00D). The change in AL were observed.The datas were analysed using SPSS 21.0.Results(1) In group 1, the mean baseline AL of the H eyes and L eye were 24.70 ± 0.89 mm and 23.55 ± 0.69 mm, respectively. In group 2A, the mean baseline AL of the H eyes and L eyes were 24.61 ± 0.84 mm and 24.00 ± 0.70 mm respectively. In group 2B, the mean baseline AL of the H eyes and L eyes were 25.28 ± 0.72 mm and 24.70 ± 0.74 mm. After 1 year, the change in AL of the L eyes was faster than the H eyes in group 1 and group 2A (all P<0.001).While the AL of the H eyes and L eyes had the same increased rate in group 2B. (2) The effect of controlling AL elongation of H eyes is consistent in three groups (P = 0.559).The effect of controlling AL elongation of L eyes in group 2B was better than that in group 1 and group 2A (P < 0.001). And the difference between group 1 and group 2A has no statistical significance. (3) The AL difference in H eyes and L eyes decreased from baseline 1.16 ± 0.55mm to 0.88 ± 0.68mm after 1 year in group 1.And in group 2A, the AL difference in H eyes and L eyes decreased from baseline 0.61 ± 0.34mm to 0.48 ± 0.28mm. There was statistically significant difference (all P<0.001). In group 2B, the baseline AL difference in H eyes and L eyes has no significant difference from that after 1 year (P = 0.069).ConclusionsMonocular OK lens is effective on suppression AL growth of the myopic eyes and reduce anisometropia value in unilateral myopic children. Binocular OK lenses only reduce anisometropia with the diopter of the low eye under − 2.00D. Binocular OK lenses cannot reduce anisometropia with the diopter of the low eye equal or greater than − 2.00D. Whether OK lens can reduce refractive anisometropia value is related to the spherical equivalent refractive of low refractive eye in bilateral myopia with anisometropia children after 1-year follow-up.

scholarly journals Clinical Utility of Tc-99m MIBI SPECT/CT for Preoperative Localization of Parathyroid Lesions

2016 ◽  
Vol 79 (4) ◽  
pp. 312-318 ◽  
Author(s):  
Zeynep Gozde Ozkan ◽  
Seher Nilgun Unal ◽  
Serkan Kuyumcu ◽  
Yasemin Sanli ◽  
Mehmet Fatih Gecer ◽  
...  
Keyword(s):  
Clinical Utility ◽  
Preoperative Localization ◽  
Parathyroid Lesions ◽  
Mibi Spect

scholarly journals Preventing cesareans with peanut ball use

2019 ◽  
Vol 10 (1) ◽  
pp. 107
Author(s):  
Lauren Outland ◽  
Yolanda Alvarado
Keyword(s):  
Retrospective Study ◽  
Epidural Anesthesia ◽  
The United States ◽  
High Rate ◽  
Post Intervention ◽  
Vaginal Deliveries ◽  
Significant Difference ◽  
Cesarean Births ◽  
Retrospective Study Design ◽  
The Difference

The Association of Women's Health Obstetrical and Neonatal Nurses (AWHONN) has launched a Peanut Ball campaign to help curb the high rate of cesarean births in the United States. Cesarean births are especially likely in women who receive epidural anesthesia due to immobility and pelvic laxity. The peanut ball (PB) is a birthing ball that when placed between the mother's legs can increase pelvic dimensions and facilitate fetal descent and birth. For PB to increase vaginal deliveries (VDs), nurses on obstetrical wards need to “buy in” to using this innovation. Having “innovator” nurses on the shift helped disseminate the PB intervention and increased the rate of VDs. Using a retrospective study design that uses data collected for non-research purposes saves time and cost. Our retrospective study examined the difference in VDs with patient controlled epidural anesthesia (PCEA) in the first five months of 2016 prior to PB use compared with the same months in 2017 post intervention. Using a paired t-test we found a significant difference of successful PCEA vaginal births in 2016 compared to 2017 (p = .008). This relatively inexpensive and easy survey can be done by most obstetrical services and help AWHONN in their campaign to decrease the rate of cesarean sections.

scholarly journals Retrospective study about the postoperative stability of zygomaticomaxillary complex fracture

2021 ◽  
Vol 43 (1) ◽  
Author(s):  
Seoghwan Yang ◽  
Jin-yong Cho ◽  
Woo-chul Shim ◽  
Sungbeom Kim
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Internal Fixation ◽  
Open Reduction ◽  
Complex Fracture ◽  
Significant Difference ◽  
Zygomaticomaxillary Complex Fracture ◽  
The Difference ◽  
Zygomaticomaxillary Complex

Abstract Background The aim of this study is to evaluate the postoperative stability of zygomaticomaxillary complex (ZMC) fractures according to the number of fixation sites and to investigate the direction of postoperative displacement of the unfixed part of the fractured segment. Methods This study was retrospectively performed on 38 patients who were treated by open reduction and internal fixation of ZMC fractures and were taken postoperative computed tomography (CT) between February 2012 and July 2019. The patients were classified into 3 groups: 1-point fixation, 2-point fixation, 3-point fixation according to the number of fixations. The postoperative displacement of the fractured segment was evaluated by the superimposition between postoperative CT and follow-up CT, and the postoperative stability according to the fixation sites was investigated through the amount of postoperative displacement. In addition, it was investigated in which direction the location of the fractured segment was changed in the unfixed fractured segment according to the fixation sites. Results The amount of postoperative displacement of the fractured segment was 0.75 ± 1.18 mm on average. In the postoperative displacement of the distal area according to the number of fixation of the fracture, there was no statistically significant difference in the amount of displacement of the fracture (p = 0.574). As for the direction of the change in the location of the fractured segment, 12 patients among 38 patients with the change in the location of the fractured segment were investigated, and the displacement in the medial direction (n = 11, 91.67%) was the most common in all three fixation methods. Conclusion In patients with a ZMC fracture who were treated by open reduction and internal fixation, the number of fixations did not make the difference in the postoperative displacement of the fracture. In addition, the fractured segment mainly changes in the medial direction after surgery, and this fact can be used as a reference for the reduction direction during surgery for the stable prognosis.

scholarly journals Options for antiarrhythmic therapy after surgical treatment of the atrial fibrillation

2015 ◽  
Vol 6 (4) ◽  
pp. 30-34
Author(s):  
V. V Bazylev ◽  
E. V Nemchenko ◽  
G. N Abramova ◽  
V. A Karnakhin
Keyword(s):  
Heart Failure ◽  
Atrial Fibrillation ◽  
Retrospective Study ◽  
Surgical Treatment ◽  
Sinus Rhythm ◽  
Functional Class ◽  
Number Of Patients ◽  
Significant Difference ◽  
Cardiovascular Center ◽  
The Difference

Aim. To assess the afficiency of using different shcemes of the antiarrythmic therapy (AAT) after the surgical treatment of the atrial fibrillation (AF).Material and methods. This retrospective study included 279 patients: 141 (49%) females and 168 (51%) males, aged 59±7.9 years who had got Сox-Maze IV procedure at Federal cardiovascular center (Penza). 27 patient (9.7%) had the paroxysmal AF, 252 (90.3%) - the persistent one. The AF’s duration was 36 months (from 1 to 180). The size of the left atrium was average 52.4±8.4 mm (from 40 to 82 mm). The medium functional class (FC) of heart failure (HF) (NYHA) was 2.8±0.4: II FC-63 (22.6%), III FC - 213 (76.3%), IV FC - 3 (1.1%). There were 3 groups of patients:1 group had 57 patients who had got amiodaron over 6 months; 2 group - 126 patients who had got b-blocker (b-B) (bisoprolol) long monotherapy; 3 group - 96 patients who had got amiodaron during 3-6 months then had got bisoprolol long therapy. All patiens got Cox-Maze IV procedure.Results. Remote results assessed after 6 months-3 years period after the operation. In all groups the number of patients with I and II FC HF increased; there was significant difference at 2 group (p1-2=0.01; p2-3=0.01; p1- 3=0.73). And there were more patients with sinus rhythm at 2 group than at 3 group significantly. The freedom from AF at 1 group was 77%±0.89, at 2 group - 68%±0.98, at 3 group - 85%±0.95 with the significant difference between 2 and 3 groups (р1-2=0.61; p1-3=0.13; p2-3=0.01).Conclusions. AAT by amiodaron during 3-6 months and then by beta-blocker (bisoprolol) longly after Cox-Maze IV procedure allows to keep sinus rhythm to 85% patiens at the distant period of time and comparing with the b-blocker-monotherapy allows to keep sinus rhythm more effectively. The difference of efficiency by long amiodaron-monotherapy and amiodaron-therapy during 3-6 months is not got statistical significant after Cox-Maze IV procedure.

scholarly journals The global prevalence ptxP3 lineage of Bordetella pertussis was rare in young Children with the Co-purified aPV vaccination: a 5 years retrospective study

2020 ◽  
Author(s):  
Zengguo Wang ◽  
Yang Luan ◽  
Quanli Du ◽  
Chang Shu ◽  
Xiaokang Peng ◽  
...  
Keyword(s):  
Cohort Study ◽  
Retrospective Study ◽  
Vaccination Status ◽  
23S Rrna ◽  
Erythromycin Resistance ◽  
Antibiotic Susceptibility Test ◽  
Significant Difference ◽  
Resistant Strains ◽  
The Difference ◽  
Additional Antigen

Abstract Background: The global prevalent ptxP3 strains varies from about 10% to about 50% of circulating B. pertussis population in different areas of China. Methods To investigate the difference of vaccination status between different genotypes in the circulating B. pertussis after 10 years of acellular pertussis vaccine (aPV) used in China. The nasopharyngeal swabs and isolates of B. pertussis from these patients were used to perform genotyping of antigen genes. We use antibiotic susceptibility test against erythromycin and sequencing methods for site 2047 of 23S rRNA to determine the resistance status. Results The ptxP1 allele with erythromycin resistant strains infection (total of 449 samples) consisted of 84.70% to 96.70% from 2012 to 2016. Only 2 of the 21 ptxP3 strains infected in children vaccinated with co-purified aPV, that showed a significant difference between the ptxP1 strains does (χ 2 =6.87, P=0.032). Conclusions The ptxP1 allele with erythromycin resistant B. pertussis was steadily increased in Xi’an, China from 2012 to 2016, where co-purified aPV was prevalence used . We assumed that the co-purified aPV might protect against ptxP3 strains more efficient, which generated a rare chance for ptxP3 strains to be under the antibiotic pressure and further developed to be erythromycin resistance. A further cohort study and the mechanisms of the additional antigen proteins of co-purified aPV protected against B. pertussis should be consideration.

Complications associated with percutaneous nephrolithotripsy: supra- versus subcostal access: A retrospective study

2003 ◽  
Vol 44 (4) ◽  
pp. 447-451 ◽  
Author(s):  
E. Radecka ◽  
M. Brehmer ◽  
K. Holmgren ◽  
A. Magnusson
Keyword(s):  
Retrospective Study ◽  
Urinary Calculi ◽  
Arterial Embolization ◽  
Fluoroscopic Guidance ◽  
Ct Guided ◽  
Number Of Patients ◽  
Increased Risk ◽  
Significant Difference ◽  
The Difference ◽  
Percutaneous Nephrolithotripsy

Purpose: Percutaneous nephrolithotripsy is an essential procedure for treating complex urinary calculi. To achieve optimal access to a large and complicated stone, an upper calyx puncture is often preferable. However, when performing a puncture above the 12th rib there is risk of an increased number of complications. In this retrospective study, we assessed the kind and frequency of complications after sub- and supracostal punctures of the collecting system of the kidney. Material and Methods: Between 1996 and 2001, 85 patients were treated with percutaneous nephrolithotripsy. In 63 patients a subcostal track, below the 12th rib was established. Puncture was performed under ultrasonic or fluoroscopic guidance in 61 patients and CT-guided in 2 patients. In 17 patients a supracostal puncture, above the 12th rib, was performed under CT guidance and in 5 patients with US or fluoroscopic guidance. Result: The main difference regarding preoperative complications was the number of patients complaining of respiratory correlated pain, 7 (32%) in the supracostal puncture group compared with 3 (5%) in the subcostal puncture group. No significant difference regarding peroperative complications was found. Postoperatively, there were 2 major bleedings, one in each group, which had to be treated with arterial embolization. In the supracostal puncture group there were 2 patients with pleural effusion and 2 patients with pneumothorax. Conclusion: The complication rate was slightly higher after supracostal puncture as compared with a subcostal approach, especially regarding respiratory correlated pain. When performing a supracostal puncture there is an increased risk that the track passes through the pleural space, which might explain the difference in the panorama of complications.

Sign in / Sign up

Export Citation Format

Share Document