Results 61 to 70 of about 3,050 (206)

The Nuclear Imaging Uncertainty Principle. Do Nuclear Cameras Really Work? [PDF]

open access: yes, 2010
The introduction of the Heisenberg Uncertainty principle and Nuclear Cardiology occurred simultaneously in 1925-1927. Thirty years later the Anger gamma camera would allow for a more sophisticated radioactive isotope counting to determine the presence or
Gordon Harrington, Richard Fleming
core   +1 more source

Disproportionate Elevated Troponin T Without Clinical Ischemia: A Diagnostic Challenge in the Emergency Department

open access: yesCase Reports in Medicine, Volume 2026, Issue 1, 2026.
Background Cardiac troponins (cTns) are essential for evaluating chest pain, but elevated levels can arise from noncardiac causes or laboratory artifacts. Confirmatory testing for assay interference is often unavailable for false‐positive cases, complicating diagnosis and management.
Bryan Nicolalde   +5 more
wiley   +1 more source

Influência de diferentes parâmetros na diminuição da actividade extra-miocárdica nos estudos Gated-SPECT [PDF]

open access: yes, 2011
A imagem de perfusão do miocárdio por tomografia computorizada de emissão de fotão único (SPECT, do acrónimo inglês Single Photon Emission Computed Tomography) é um dos exames complementares de diagnóstico mais indicados na cardiologia clínica.
Carolino, Elisabete   +4 more
core  

Brown Tumors Mimicking Skeletal Metastases: A Diagnostic Pitfall in Primary Hyperparathyroidism

open access: yesClinical Case Reports, Volume 13, Issue 12, December 2025.
ABSTRACT Brown tumors are rare but important manifestations of primary hyperparathyroidism (PHPT). These benign, fibrotic, and erosive bony lesions result from localized rapid osteoclastic activity driven by excessive parathyroid hormone levels. Although brown tumors are considered one of the most pathognomonic signs of PHPT, they are infrequently ...
Uzma Akbar   +7 more
wiley   +1 more source

Preoperative 99mTc-sestamibi scintigraphy in patients with primary hyperparathyroidism and concomitant nodular goiter: Comparison of SPECT-CT, SPECT, and planar imaging

open access: yes, 2012
Background: Investigations using a hybrid single photon emission computed tomography/computed tomography (SPECT-CT) scanning technique have been carried out in limited studies and have shown mixed results.
Assadi, M.   +10 more
core   +1 more source

Diagnostic capabilities of I-131, TI-201, and Tc-99m-MIBI scintigraphy for metastatic differentiated thyroid carcinoma after total thyroidectomy. [PDF]

open access: yes, 2005
We investigated the diagnostic capabilities of I-131, Tl-201, and Tc-99m-MIBI (hexakis-2-methoxyisobutyl- isonitrile) scintigraphy for thyroid cancer metastases after total thyroidectomy over the entire body and for every locus before and after thyroid ...
Akaki, Shiro   +7 more
core   +1 more source

Surgical Treatment for Osteomalacia Induced by Causative Tumor in the Knee Joint Region: A Single‐Center Retrospective Clinical Study Over 10 Years

open access: yesOrthopaedic Surgery, Volume 17, Issue 12, Page 3440-3455, December 2025.
The causative tumor for TIO in the knee joint region is hidden and has diverse locations, resulting in great challenges to endocrinologist and orthopedists. Due to the unique anatomical location and complex structure of the knee joint, orthopedic surgeons can adopt different surgical approaches to completely remove the causative tumor.
Shuzhong Liu   +7 more
wiley   +1 more source

Patients with primary hyperparathyroidism undergoing surgical intervention in two tertiary care hospitals in Sri Lanka

open access: yesSri Lanka Journal of Diabetes Endocrinology and Metabolism, 2019
Introduction Autonomous production of parathyroid hormone results in primary hyperparathyroidism. Sri Lankan studies analyzing cases of hyperparathyroidism are scarce.
R. S. Mohamed   +4 more
doaj   +1 more source

Large Right Atrial Myxoma With Endocrine Abnormalities as a Possible Case of a Syndromic Disease: A Case Report

open access: yesClinical Case Reports, Volume 13, Issue 11, November 2025.
ABSTRACT The late onset of significant symptoms in this case provides valuable insight for future research on multiple neoplasia and endocrine syndromes, emphasizing the challenges of timely recognition. As syndromic features may regress over time, careful attention to detailed clinical history and subtle past manifestations remains essential for ...
Rozita Jalalian   +5 more
wiley   +1 more source

Imaging in Renal Cell Carcinoma Detection

open access: yesDiagnostics
Introduction: Imaging in renal cell carcinoma (RCC) is a constantly evolving landscape. The incidence of RCC has been rising over the years with the improvement in image quality and sensitivity in imaging modalities resulting in “incidentalomas” being ...
Dixon Woon   +4 more
doaj   +1 more source

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