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The Novel Approach of Minimally Invasive Parathyroid Surgery Requires Precise Identification and Localization of the Lesion Prior to Exploration

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified October 2010 by Rambam Health Care Campus.
Recruitment status was:  Not yet recruiting
Information provided by:
Rambam Health Care Campus Identifier:
First received: October 21, 2010
Last updated: NA
Last verified: October 2010
History: No changes posted
Purpose of this study is to compare the image quality and diagnostic accuracy obtained with ultrafast solid state short SPECT in comparison with the routine SPECT protocol.

Hypercalcemia Hyperparathyroidism

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Cross-Sectional
Official Title: A Novel Approach to Ultrafast Parathyroid SPECT Imaging Using a Solid State CZT SPECT Camera

Further study details as provided by Rambam Health Care Campus:

Estimated Enrollment: 50
Study Start Date: January 2011
Detailed Description:

Single-tracer, dual-phase Tc-MIBI parathyroid scintigraphy is based on the differential washout rate of the tracer (MIBI) from the thyroid and the parathyroid tissue. A distinct focus of increased MIBI uptake relative to the thyroid gland, either on the early or late image or on both, or a focal uptake in the mediastinum, is considered positive for abnormal parathyroid tissue. Tc99m-MIBI planar scintigraphy was found to play a major role in the preoperative localization of a parathyroid adenoma (PTA), with a sensitivity ranging from 85% to 95% and specificity of up to 99%. Subsequently, the use of MIBI- Single photon emission computed tomography (SPECT) significantly improved the sensitivity of the test and improved the accuracy of lesion localization.

A limitation of adding the SPECT component is related to its relatively long duration. The duration of a MIBI-SPECT acquisition of neck and the mediastinal area may take up to 15-20 minutes using a standard nuclear medicine camera. Long acquisition time may lead to patient discomfort and movement resulting in image degradation, artifacts and may lead to overall decreased diagnostic accuracy.

A reduced SPECT acquisition time without image quality degradation may decrease patient discomfort and increase clinical throughput. An ultrafast solid state CZT camera (GE Healthcare Discovery 570C) is currently used for routine cardiac SPECT imaging achieving high quality cardiac studies for a significantly shorter acquisition time. Present study evaluates the potential use of the ultrafast camera in patients with a clinically suspected PTA who perform Tc-MIBI imaging.


Ages Eligible for Study:   18 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients referred for the parathyroid scan.

Inclusion Criteria:

1) The subject is 18 years old or older. (2) The subject is clinically suspected or known to have parathyroid adenoma and is scheduled to have a MIBI study as part of his/her standard clinical evaluation.

(3) The subject is able and willing to comply with the additional procedure (ultrafast MIBI SPECT) and a signed and dated informed consent is obtained before any procedure for study purposes is performed.

Exclusion Criteria:

  1. Pregnancy.
  2. Psychosis or any other condition, which, in the investigators opinion would prevent adherence to the study protocol.
  Contacts and Locations
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Please refer to this study by its identifier: NCT01226810

Contact: Kinga Przewloka, MSc +9728542816

Rambam Healthcare Campus Not yet recruiting
Haifa, Israel, 36029
Contact: Kinga Przewloka, MSc    009728542816   
Sponsors and Collaborators
Rambam Health Care Campus
Principal Investigator: Ora Israel, MD Rambam Health Care Campus
  More Information

Responsible Party: Prof. Ora Israel, RambamMC Identifier: NCT01226810     History of Changes
Other Study ID Numbers: 024-10-RMB_parathyroid
Study First Received: October 21, 2010
Last Updated: October 21, 2010

Additional relevant MeSH terms:
Parathyroid Diseases
Endocrine System Diseases
Calcium Metabolism Disorders
Metabolic Diseases
Water-Electrolyte Imbalance processed this record on September 21, 2017