99mTechnetium-201Thallium subtraction scanning was performed in 24 patients with primary (N = 5) and secondary (N = 19) hyperparathyroidism. The preoperative scintigraphy (N = 12) detected 21 of 23 enlarged glands surgically removed and was helpful for detecting abnormal location especially in the mediastinum. Postoperative scanning in patients with recurrent hyperparathyroidism confirmed the excessive growth of the remaining half parathyroid after subtotal parathyroidectomy or a missing fifth parathyroid after total parathyroidectomy and autotransplantation. False negative results were due to tumor hyperplasia. The technique is recommended prior to repeated exploration in patients presenting persistent disease to predict the location of adenomas generally unsuccessfully detected by ultrasonography and computed tomography.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/BF01654460 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The feasibility of endoscopic stapes surgery: A three-dimensional planning method.
Laryngoscope Investig Otolaryngol
February 2025
Objective: The primary aim of this study was to investigate the accuracy of a semi-automatic algorithm in assessing the feasibility and complexity of endoscopic stapes surgery preoperatively.
Methods: A semi-automatic algorithm was developed to simulate endoscopic stapes surgery in 3D. To test the accuracy of the algorithm, five fresh-frozen cadaveric heads (ten ears) were used.
Assessment of hard tissue changes after horizontal guided bone regeneration with the aid of deep learning CBCT segmentation.
Clin Oral Investig
January 2025
Department of Periodontology, Semmelweis University, Budapest, Hungary.
Objectives: To investigate the performance of a deep learning (DL) model for segmenting cone-beam computed tomography (CBCT) scans taken before and after mandibular horizontal guided bone regeneration (GBR) to evaluate hard tissue changes.
Materials And Methods: The proposed SegResNet-based DL model was trained on 70 CBCT scans. It was tested on 10 pairs of pre- and post-operative CBCT scans of patients who underwent mandibular horizontal GBR.
Influence of orthodontic bracket block-out materials on superimposition errors when substituting scanned dental imaging data onto computed tomography images.
Imaging Sci Dent
December 2024
Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Korea.
Purpose: The study was performed to examine the error associated with image superimposition when computed tomography (CT) images of the dental region are substituted with dental scan data, according to the block-out material used in dental impressions.
Materials And Methods: A typodont model was created by bonding orthodontic brackets to teeth on plaster dental stones using melted dental base-plate wax. In the experiment, 2 groups were compared: one using wax and the other using putty as the block-out material to prevent tearing of the impression material during the acquisition of dental impressions.
Language Dominance in Left-Handers: Unveiling Left Hemisphere Global Dominance With Specific Right Hemisphere Regional Dominance.
Cureus
November 2024
Department of Neurosurgery, Fukushima Medical University, Fukushima, JPN.
Article Synopsis
- The study examines how brain hemispheres relate to language processing in left-handed (LH) and right-handed (RH) individuals, finding that left-hemisphere dominance for language is common in both groups.
- Advanced imaging techniques, including fMRI, show subtle differences in language lateralization between LH and RH individuals, particularly during semantic processing tasks.
- Using high-resolution fMRI data from the Human Connectome Project, the research compares brain activity in LH and RH participants during language-related tasks, aiming to enhance understanding of language lateralization patterns.
Biomechanical and clinical evaluation of PSO, modified PSO and VCR treating OVCF kyphosis: a finite element analysis.
Front Bioeng Biotechnol
December 2024
Department of Orthopaedics, Peking University Third Hospital, Beijing, China.
Objective: To confirm the effect of surgery on spinal column biomechanics and to provide theoretical support for the advantages and disadvantages of different surgical methods and their clinical efficacy.
Methods: 33 continuous patients with no significant difference in risk factors related to the mechanical complications were enrolled in this retrospective study. Sagittal parameters were measured in the pre-, post-operative and following-up lateral radiograph of spine.
Want 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!