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Walulik A, Misiąg W, Gajdzis P, Szymańska-Chabowska A, Chabowski M. Primary Hyperparathyroidism Secondary to Ectopic Parathyroid Adenoma: A Case Report. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1374:73-79. [PMID: 34970729 DOI: 10.1007/5584_2021_698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Primary hyperparathyroidism (PHPT) secondary to parathyroid gland adenoma is mildly symptomatic and thus often incidentally diagnosed. In this report, we present a case of a 46-year-old man who was treated for hypertension and other nonspecific complaints. An elevated level of blood calcium led to the suspicion of parathyroid adenoma. Technetium-99m-methoxyisobutylisonitrile (99mTc-MIBI) planar and single-photon emission computed tomographic scintigraphy (SPECT/CT) confirmed the presence of a 10-mm-wide adenoma behind the sternal handle in the anterior mediastinum. The tumor was excised by Kocher's cervical access along with the right and left upper horns of the thymus gland and was histologically confirmed as being of parathyroid nature. However, blood parathyroid hormone and calcium remained persistently elevated. Repeated scintigraphy imaging revealed the presence of another retrosternal tracer focus at the level of Ludwig's angle. The patient was reoperated with the longitudinal sternotomy access, and thymus remnants, parathymic nodule, and fragments of mediastinal fat and right parietal pleura were removed. On the second postoperative day, parathyroid hormone and calcium reverted to normal values, but the patient remained hypertensive. Despite the successful surgical treatment, the patient remained hypertensive suggesting that the underlying reason was a familial hypertensive disease rather than parathyroid adenoma. In conclusion, this report underscores the need for diagnostic vigilance in the case of persisting hypercalcemia with hypertension and diagnostic and surgical difficulties in the management of ectopic PHPT secondary to parathyroid gland adenomas.
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Affiliation(s)
- Agata Walulik
- Student Research Group No 180, Faculty of Medicine, Wroclaw Medical University, Wrocław, Poland
| | - Weronika Misiąg
- Student Research Group No 180, Faculty of Medicine, Wroclaw Medical University, Wrocław, Poland
| | - Paweł Gajdzis
- Department of Pathomorphology and Oncological Cytology, Faculty of Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Anna Szymańska-Chabowska
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, Wroclaw, Poland.
| | - Mariusz Chabowski
- Department of Surgery, Fourth Military Teaching Hospital, Wrocław, Poland.,Division of Anesthesiologic and Surgical Nursing, Department of Nursing and Obstetrics, Faculty of Health Science, Wrocław Medical University, Wrocław, Poland
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Yang J, Wang H, Zhang J, Xu W, Weng W, Lv S, Dong M. Sestamibi Single-Positron Emission Computed Tomography/Diagnostic-quality Computed Tomography for the localization of abnormal parathyroid glands in patients with primary hyperparathyroidism: What clinicopathologic factors affect its accuracy? J Endocrinol Invest 2021; 44:1649-1658. [PMID: 33393058 DOI: 10.1007/s40618-020-01471-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/18/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE Sestamibi Single-Positron Emission Computed Tomography/Diagnostic-quality Computed Tomography (MIBI-SPECT/CT) is a common technology used for primary hyperparathyroidism (PHPT) localization in clinical practice. However, the clinicopathologic factors affecting the accuracy of MIBI-SPECT/CT and the potential limitations remain unclear. METHODS Retrospectively enrolled PHPT patients (n = 280) were analyzed from August 2017 to December 2019. RESULTS Of 96 patients with PHPT (mean age, 54 years; 63 females), 17 had discordance between MIBI-SPECT/CT and intraoperative findings. Among the 17 patients with discordance, 58.8% had major discordance, which occurred in most patients with multigland disease (MGD). Compared with concordant patients, discordant patients exhibited increased frequencies of autoimmune thyroid disease (29.4% vs 10.1%, p = 0.035), MDG (41.2% vs 3.8%, p = 0.035), higher PTH (296 pg/mL vs 146 pg/mL; p = 0.012),and lower phosphorus levels (0.77 mmol/L vs 0.90 mmol/L; p = 0.024). MDG (odds ratio [OR], 16.95; 95% CI 2.10-142.86), parathyroid lesion size of 12 mm or less (OR, 6.93; 95% CI 1.41-34.10), and a PTH level higher than 192.5 pg/mL (OR, 12.66; 95% CI 2.17-71.43) were independently associated with discordant MIBI-SPECT/CT results. CONCLUSION MGD was most strongly associated with discordance between MIBI-SPECT/CT and intraoperative findings followed by a PTH level higher than 192.5 pg/mL and parathyroid lesion size of 12 mm or less. Surgeons should recognize these potential limitations, which may improve the preoperative procedure by encouraging further localization imaging and promptly facilitate intraoperative troubleshooting.
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Affiliation(s)
- J Yang
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - H Wang
- Department of Surgical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, People's Republic of China
| | - J Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - W Xu
- Department of Endocrinology, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, People's Republic of China
| | - W Weng
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - S Lv
- Department of Radiology, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, People's Republic of China
| | - M Dong
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, People's Republic of China.
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Eller M, Dave A, Johnson C, Fingeret AL. Accuracy of 4-Dimensional Computed Tomography for Localization in Primary Hyperparathyroidism. J Surg Res 2020; 257:15-21. [PMID: 32818780 DOI: 10.1016/j.jss.2020.07.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 07/09/2020] [Accepted: 07/11/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND The etiology of primary hyperparathyroidism (PHP) is single-gland adenoma in most patients. Imaging localization of single-gland disease allows for a focused operation. We sought to determine the accuracy of imaging for localizing a solitary parathyroid adenoma. METHODS A single-institution retrospective review was performed of adult patients with PHP undergoing parathyroidectomy from January 2017 through December 2018. Surgeon-performed ultrasound (US), four-dimensional computed tomography (4DCT), and sestamibi were assessed for localization of a parathyroid adenoma yielding a single-gland parathyroidectomy. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were calculated for each imaging modality. RESULTS One hundred fifty-four patients underwent parathyroidectomy for PHP during the study period, with 100 patients meeting inclusion criteria with a mean age of 61.1 (SD 10) y and 80% women. Mean calcium was 11.1 mg/dL (SD 0.7) and mean PTH was 116 pg/mL (SD 66). All 100 patients had surgeon-performed US with 17 localized, 51 patients had 4DCT with 41 (80%) localized, and 69 patients had sestamibi with 53 (77%) localized. Eighty-two patients underwent successful unilateral parathyroidectomy, 18 required bilateral neck exploration. US was the most specific imaging modality at 94%. Accuracy of imaging localization was 32% for US, 70% for sestamibi, and 86% for 4DCT. CONCLUSIONS Surgeon-performed US is a highly specific imaging modality for preoperative localization of solitary parathyroid adenoma in patients with PHP. 4DCT is the most accurate imaging localization study and should be considered for patients with a nonlocalized US.
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Affiliation(s)
- Michael Eller
- Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska
| | - Atman Dave
- Department of Radiology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Craig Johnson
- Department of Radiology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Abbey L Fingeret
- Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska.
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Sandqvist P, Nilsson IL, Grybäck P, Sanchez-Crespo A, Sundin A. Multiphase Iodine Contrast-Enhanced SPECT/CT Outperforms Nonenhanced SPECT/CT for Preoperative Localization of Small Parathyroid Adenomas. Clin Nucl Med 2019; 44:929-935. [PMID: 31689274 DOI: 10.1097/rlu.0000000000002778] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PURPOSE The aim of this study was to assess the value of intravenously contrast-enhanced CT in conjunction with Tc-MIBI SPECT for preoperative localization of parathyroid adenoma. METHODS One hundred ninety-two patients with primary hyperparathyroidism were enrolled in the study between May 2015 and May 2017. The patients underwent a preoperative "one-stop shop" examination with Tc-MIBI SPECT/CT by using dual time-point (10 and 90 minutes) protocol and both nonenhanced CT and contrast-enhanced CT acquisition in the arterial and venous phase, 35 and 75 seconds, respectively, after contrast medium injection start. For 149 patients, the imaging results could be correlated to those at surgery and histopathology. RESULTS The median adenoma weight was 330 mg. The addition of contrast-enhanced CT increased the sensitivity from 81.1% to 89.9% (P = 0.003). The specificity of nonenhanced SPECT/CT was similar to contrast-enhanced CT (96.1% vs 97.9%; P = 0.077). For patients with uniglandular disease (n = 140, 94.0%), the sensitivity increased from 86.4% to 93.6% (P = 0.021) and the specificity from 96.2% to 97.9% (P = 0.118) by adding contrast-enhanced CT. In patients with multiglandular disease (n = 9, 6.0%), adding contrast-enhanced CT improved detection sensitivity from 42.1% to 63.2%. However, these patients were few and significance was not reached (P = 0.125). CONCLUSIONS In this cohort, with generally small parathyroid adenomas, the sensitivity in preoperative localization was greatly improved by adding contrast-enhanced CT to Tc-MIBI SPECT/CT.
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Affiliation(s)
- Patricia Sandqvist
- From the Department of Medical Radiation Physics and Nuclear Medicine, Karolinska University Hospital
- Department of Molecular Medicine and Surgery, Karolinska Institute
| | - Inga-Lena Nilsson
- Department of Molecular Medicine and Surgery, Karolinska Institute
- Department of Endocrine Tumors and Sarcoma, Karolinska University Hospital
| | - Per Grybäck
- From the Department of Medical Radiation Physics and Nuclear Medicine, Karolinska University Hospital
- Department of Molecular Medicine and Surgery, Karolinska Institute
| | - Alejandro Sanchez-Crespo
- From the Department of Medical Radiation Physics and Nuclear Medicine, Karolinska University Hospital
- Department of Oncology-Pathology, Karolinska Institute, Stockholm
| | - Anders Sundin
- Department of Radiology, Section for Molecular Imaging, Institution for Surgical Sciences, Uppsala University Hospital, Uppsala, Sweden
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Update of the role of Nuclear Medicine techniques in the pre-surgical localization of primary hyperparathyroidism. Rev Esp Med Nucl Imagen Mol 2019. [DOI: 10.1016/j.remnie.2019.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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García-Talavera San Miguel P, Gómez-Caminero López F, Villanueva Curto JG, Tamayo Alonso MP, Martín Gómez ME. Update of the role of Nuclear Medicine techniques in the pre-surgical localization of primary hyperparathyroidism. Rev Esp Med Nucl Imagen Mol 2019; 38:123-135. [PMID: 30738915 DOI: 10.1016/j.remn.2018.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 12/16/2018] [Accepted: 12/20/2018] [Indexed: 10/27/2022]
Abstract
Primary hyperparathyroidism is one of the most frequent endocrine disorders. Its diagnosis is biochemical. Imaging techniques are not useful for the diagnosis of this pathology; they are just tools for pre-surgical localization. In this continuing education, we will analyze the different imaging modalities used in this indication, focusing on Nuclear Medicine. The most commonly used imaging technique in this context is the parathyroid scintigraphy, nowadays double phase protocol with 99mTc-MIBI and the double tracer with 99mTc-MIBI/99mTc-pertechnetate, associated in the first case to SPECT or SPECT/CT, in an early or late phase. The PET/CT with different tracers is showing good results, especially applied to cases of failure in the pre-surgical scintigraphic localization. We expose the results of the morphological imaging techniques as well as the usefulness of combining techniques.
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Affiliation(s)
| | - F Gómez-Caminero López
- Servicio de Medicina Nuclear, Hospital Clínico Universitario de Salamanca, Salamanca, España
| | - J G Villanueva Curto
- Servicio de Medicina Nuclear, Hospital Clínico Universitario de Salamanca, Salamanca, España
| | - M P Tamayo Alonso
- Servicio de Medicina Nuclear, Hospital Clínico Universitario de Salamanca, Salamanca, España
| | - M E Martín Gómez
- Servicio de Medicina Nuclear, Hospital Clínico Universitario de Salamanca, Salamanca, España
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Affiliation(s)
- Reema Mallick
- Department of Surgery, University of Alabama-Birmingham, 1808 7th Avenue South, Suite 502, Birmingham, AL 35233, USA
| | - Herbert Chen
- Department of Surgery, University of Alabama-Birmingham, 1808 7th Avenue South, Suite 502, Birmingham, AL 35233, USA.
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Guo R, Wang J, Zhang M, Zhang M, Meng H, Zhang Y, Li B. Value of 99mTc-MIBI SPECT/CT parathyroid imaging and ultrasonography for concomitant thyroid carcinoma. Nucl Med Commun 2018; 38:676-682. [PMID: 28614134 DOI: 10.1097/mnm.0000000000000692] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE We aimed to assess the frequency of carcinoma in cases with suspected parathyroid adenoma and test the value of Tc-methoxyisobutylisonitrile (Tc-MIBI) single-photon emission computed tomography/computed tomography (SPECT/CT) parathyroid imaging and neck ultrasonography in detecting concomitant thyroid carcinoma. PATIENTS AND METHODS We enrolled 741 patients with clinically suspected parathyroid adenoma who underwent Tc-MIBI planer scans and SPECT/CT of the skull base, neck, and thorax; patients also underwent ultrasonography within 1 month before SPECT/CT. Each case with suspected lesion was analyzed and correlated with pathology. We estimated the frequency of carcinoma detection on SPECT/CT performed for suspected parathyroid adenoma. The sensitivity, specificity, and accuracy of detecting thyroid carcinoma were estimated for both SPECT/CT and ultrasonography. RESULTS In total, 222 patients with 250 pathology results were assessed. Of these, 54 patients showed carcinoma. With respect to the anatomical distribution of the incidental findings, 19 (35.19%) had parathyroid carcinoma, 20 (37.04%) had papillary thyroid carcinoma, three (5.56%) had follicular thyroid carcinoma, six (11.11%) had medullary thyroid carcinoma, and six (11.11%) had other carcinomas. For thyroid carcinoma detection, the sensitivity, specificity, and accuracy were 35.71, 88.16, and 80.49% for SPECT/CT and 73.81, 95.10, and 91.99% for ultrasonography, respectively. CONCLUSION The frequency of carcinoma is high on Tc-MIBI SPECT/CT performed for suspected parathyroid adenoma. Although Tc-MIBI SPECT/CT plays an important role in the diagnosis and location of parathyroid adenoma, ultrasonography appears to be more suitable for identifying a concomitant thyroid carcinoma. This may vitally influence the choice of therapeutic regimen in patients with primary hyperparathyroidism.
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Affiliation(s)
- Rui Guo
- Departments of aNuclear Medicine bEndocrine and Metabolic Diseases, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Kobylecka M, Płazińska MT, Chudziński W, Fronczewska-Wieniawska K, Mączewska J, Bajera A, Karlińska M, Królicki L. Comparison of scintigraphy and ultrasound imaging in patients with primary, secondary and tertiary hyperparathyroidism - own experience. J Ultrason 2017; 17:17-22. [PMID: 28439424 PMCID: PMC5392549 DOI: 10.15557/jou.2017.0002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 09/20/2016] [Accepted: 09/23/2016] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The imaging techniques most commonly used in the diagnosis of hyperparathyroidisms are ultrasound and scintigraphy. The diagnostic algorithms vary, depending mainly on the population, and experience of physicians. AIM Aim of the present research was to determine the usefulness of parathyroid scintigraphy and ultrasonography in patients diagnosed for hyperparathyroidism in own material. MATERIAL AND METHOD In the present research, 96 operated patients with documented primary, secondary and tertiary hyperparathyroidism were retrospectively analyzed. All patients underwent a 99mTc hexakis-2-methoxyisobutylisonitrile scintigraphy of the neck with the use of subtraction and two-phase examinations. Ultrasonography of the neck was performed in all the patients in B mode 2D presentation. A total number of 172 parathyroid glands were analyzed. RESULTS The sensitivity and specificity of scintigraphy was 68% and 60%, respectively. The sensitivity of ultrasound was 49% and specificity 85%. Both techniques allowed visualization of 76 parathyroid glands. Ultrasound revealed 19 glands that were not visible in scintigraphy. Scintigraphy showed 76 parathyroid glands that were not visualized on ultrasound. Having combined the results of scintigraphy and ultrasound, the sensitivity of 76% and specificity of 50% were obtained. Considering the ability to locate the parathyroid glands in both techniques as a positive result, the sensitivity decreased to 37% and specificity rose to 95%. CONCLUSIONS Scintigraphy showed greater sensitivity than ultrasound in the localization of enlarged parathyroid glands. Ultrasound, in turn, was characterized by a higher specificity. The combined use of scintigraphy and ultrasonography allowed to obtain the specificity of 95%. In the light of obtained results, scintigraphy and ultrasonography are complementary and should be used together.
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Affiliation(s)
| | | | - Witold Chudziński
- Department of General and Endocrinological Surgery, Medical University of Warsaw, Warsaw, Poland
| | | | - Joanna Mączewska
- Nuclear Medicine Department, Medical University of Warsaw, Warsaw, Poland
| | - Adam Bajera
- Nuclear Medicine Department, Medical University of Warsaw, Warsaw, Poland
| | - Maria Karlińska
- Department of Medical Informatics and Telemedicine, Medical University of Warsaw, Warsaw, Poland
| | - Leszek Królicki
- Nuclear Medicine Department, Medical University of Warsaw, Warsaw, Poland
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Liddy S, Worsley D, Torreggiani W, Feeney J. Preoperative Imaging in Primary Hyperparathyroidism: Literature Review and Recommendations. Can Assoc Radiol J 2017; 68:47-55. [DOI: 10.1016/j.carj.2016.07.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 06/20/2016] [Accepted: 07/06/2016] [Indexed: 12/17/2022] Open
Affiliation(s)
- Stephen Liddy
- Department of Radiology, Tallaght Hospital, Tallaght, Dublin, Ireland
| | - Daniel Worsley
- Division of Nuclear Medicine, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | | | - John Feeney
- Department of Radiology, Tallaght Hospital, Tallaght, Dublin, Ireland
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SPECT/CT’s Advantage for Preoperative Localization of Small Parathyroid Adenomas in Primary Hyperparathyroidism. Clin Nucl Med 2017; 42:e109-e114. [DOI: 10.1097/rlu.0000000000001447] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ravindra VM, Mazur MD, Bisson EF, Barton C, Shah LM, Dailey AT. The Usefulness of Single-Photon Emission Computed Tomography in Defining Painful Upper Cervical Facet Arthropathy. World Neurosurg 2016; 96:390-395. [DOI: 10.1016/j.wneu.2016.09.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 09/02/2016] [Accepted: 09/06/2016] [Indexed: 01/08/2023]
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Wong KK, Chondrogiannis S, Bowles H, Fuster D, Sánchez N, Rampin L, Rubello D. Hybrid-fusion SPECT/CT systems in parathyroid adenoma: Technological improvements and added clinical diagnostic value. Rev Esp Med Nucl Imagen Mol 2016; 35:385-390. [PMID: 27554661 DOI: 10.1016/j.remn.2016.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 07/11/2016] [Accepted: 07/12/2016] [Indexed: 10/21/2022]
Abstract
Nuclear medicine traditionally employs planar and single photon emission computed tomography (SPECT) imaging techniques to depict the biodistribution of radiotracers for the diagnostic investigation of a range of disorders of endocrine gland function. The usefulness of combining functional information with anatomy derived from computed tomography (CT), magnetic resonance imaging (MRI), and high resolution ultrasound (US), has long been appreciated, either using visual side-by-side correlation, or software-based co-registration. The emergence of hybrid SPECT/CT camera technology now allows the simultaneous acquisition of combined multi-modality imaging, with seamless fusion of 3D volume datasets. Thus, it is not surprising that there is growing literature describing the many advantages that contemporary SPECT/CT technology brings to radionuclide investigation of endocrine disorders, showing potential advantages for the pre-operative locating of the parathyroid adenoma using a minimally invasive surgical approach, especially in the presence of ectopic glands and in multiglandular disease. In conclusion, hybrid SPECT/CT imaging has become an essential tool to ensure the most accurate diagnostic in the management of patients with hyperparathyroidism.
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Affiliation(s)
- K K Wong
- Division of Nuclear Medicine, Department of Radiology, University of Michigan, Ann Arbor, MI, USA; Nuclear Medicine Service, VA Ann Arbor Healthcare System, Ann Arbor, MI, USA
| | - S Chondrogiannis
- Department of Nuclear Medicine, Radiology, Medical Physics, Clinical Pathology, Rovigo Hospital, Rovigo, Italy
| | - H Bowles
- Nuclear Medicine Department, Hospital Clinic, Barcelona University, Barcelona, Spain
| | - D Fuster
- Nuclear Medicine Department, Hospital Clinic, Barcelona University, Barcelona, Spain
| | - N Sánchez
- Nuclear Medicine Department, Hospital Clinic, Barcelona University, Barcelona, Spain
| | - L Rampin
- Department of Nuclear Medicine, Radiology, Medical Physics, Clinical Pathology, Rovigo Hospital, Rovigo, Italy
| | - D Rubello
- Department of Nuclear Medicine, Radiology, Medical Physics, Clinical Pathology, Rovigo Hospital, Rovigo, Italy.
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Wong K, Chondrogiannis S, Bowles H, Fuster D, Sánchez N, Rampin L, Rubello D. Hybrid-fusion SPECT/CT systems in parathyroid adenoma: Technological improvements and added clinical diagnostic value. Rev Esp Med Nucl Imagen Mol 2016. [DOI: 10.1016/j.remnie.2016.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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15
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Menon P, Dayal D, Rao SG, Bhattacharya A, Narasimha Rao KL. Childhood parathyroid adenoma: a rare but important cause of nephrolithiasis. J Pediatr Endocrinol Metab 2016; 29:853-6. [PMID: 27054596 DOI: 10.1515/jpem-2015-0369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 02/09/2016] [Indexed: 11/15/2022]
Abstract
Primary hyperparathyroidism is very rare in children and adolescents. The management of a 12-year-old boy with renal calculi due to parathyroid adenoma is discussed. The single tumor after localization with sestamibi scintigraphy and SPECT-CT scan was excised with amelioration of symptoms. The case is reported due to the rarity of the disease and successful unilateral exploration. The association with hypopigmented areas of skin has also not been previously reported in literature.
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Wong KK, Gandhi A, Viglianti BL, Fig LM, Rubello D, Gross MD. Endocrine radionuclide scintigraphy with fusion single photon emission computed tomography/computed tomography. World J Radiol 2016; 8:635-655. [PMID: 27358692 PMCID: PMC4919764 DOI: 10.4329/wjr.v8.i6.635] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 11/09/2015] [Accepted: 03/18/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To review the benefits of single photon emission computed tomography (SPECT)/computed tomography (CT) hybrid imaging for diagnosis of various endocrine disorders.
METHODS: We performed MEDLINE and PubMed searches using the terms: “SPECT/CT”; “functional anatomic mapping”; “transmission emission tomography”; “parathyroid adenoma”; “thyroid cancer”; “neuroendocrine tumor”; “adrenal”; “pheochromocytoma”; “paraganglioma”; in order to identify relevant articles published in English during the years 2003 to 2015. Reference lists from the articles were reviewed to identify additional pertinent articles. Retrieved manuscripts (case reports, reviews, meta-analyses and abstracts) concerning the application of SPECT/CT to endocrine imaging were analyzed to provide a descriptive synthesis of the utility of this technology.
RESULTS: The emergence of hybrid SPECT/CT camera technology now allows simultaneous acquisition of combined multi-modality imaging, with seamless fusion of three-dimensional volume datasets. The usefulness of combining functional information to depict the bio-distribution of radiotracers that map cellular processes of the endocrine system and tumors of endocrine origin, with anatomy derived from CT, has improved the diagnostic capability of scintigraphy for a range of disorders of endocrine gland function. The literature describes benefits of SPECT/CT for 99mTc-sestamibi parathyroid scintigraphy and 99mTc-pertechnetate thyroid scintigraphy, 123I- or 131I-radioiodine for staging of differentiated thyroid carcinoma, 111In- and 99mTc- labeled somatostatin receptor analogues for detection of neuroendocrine tumors, 131I-norcholesterol (NP-59) scans for assessment of adrenal cortical hyperfunction, and 123I- or 131I-metaiodobenzylguanidine imaging for evaluation of pheochromocytoma and paraganglioma.
CONCLUSION: SPECT/CT exploits the synergism between the functional information from radiopharmaceutical imaging and anatomy from CT, translating to improved diagnostic accuracy and meaningful impact on patient care.
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Barber B, Moher C, Côté D, Fung E, O'Connell D, Dziegielewski P, Harris J. Comparison of single photon emission CT (SPECT) with SPECT/CT imaging in preoperative localization of parathyroid adenomas: A cost-effectiveness analysis. Head Neck 2016; 38 Suppl 1:E2062-5. [PMID: 26849426 DOI: 10.1002/hed.24379] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 12/04/2015] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Controversy exists regarding the superiority of single photon emission CT (SPECT)/CT over SPECT for preoperative localization of parathyroid adenomas in primary hyperparathyroidism (PHPT), as well as the cost-effectiveness. METHODS A retrospective review was undertaken of patients undergoing surgery for PHPT from January 2009 to August 2014. Ultrasound and SPECT (ultrasound-SPECT) or SPECT/CT (ultrasound-SPECT/CT) were performed for each patient. Sensitivity and positive predictive value (PPV) of each modality were calculated. Cost-effectiveness was determined by an incremental cost-effectiveness ratio (ICER) analysis. RESULTS Two hundred fifty-nine patients with 266 parathyroid adenomas were included in the study. Lateralization sensitivity and PPV of ultrasound-SPECT were 85.1% and 98.2%, respectively. The lateralization sensitivity and PPV of ultrasound-SPECT/CT were 86.9% and 99.4%, respectively. A cost of $2499.22 (CAD) per additional parathyroid adenoma detection by ultrasound-SPECT/CT was determined from the ICER analysis. CONCLUSION Similar sensitivities and PPVs were observed between ultrasound-SPECT and ultrasound-SPECT/CT in preoperatively lateralizing parathyroid adenomas, with relatively equivalent cost-effectiveness. © 2016 Wiley Periodicals, Inc. Head Neck 38: E2062-E2065, 2016.
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Affiliation(s)
- Brittany Barber
- Division of Otolaryngology - Head and Neck Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Conrad Moher
- Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - David Côté
- Division of Otolaryngology - Head and Neck Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Elaine Fung
- Department of Otolaryngology, Queen's University, Kingston, Ontario, Canada
| | - Daniel O'Connell
- Division of Otolaryngology - Head and Neck Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Peter Dziegielewski
- Division of Head and Neck Oncologic Surgery, University of Florida, Gainesville, Florida
| | - Jeffrey Harris
- Division of Otolaryngology - Head and Neck Surgery, University of Alberta, Edmonton, Alberta, Canada
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Abstract
PURPOSE The aim of the study was to determine the diagnostic utility of parathyroid scintigraphy with technetium-99m (99mTc)-sestamibi single-photon emission computed tomography/computed tomography (SPECT/CT) for localization of parathyroid adenoma. MATERIALS AND METHODS We performed a systematic search of medical databases PubMed and Medline/OVID for literature on 99mTc-sestamibi SPECT/CT parathyroid scintigraphy, using the search terms hyperparathyroidism, parathyroid adenoma/hyperplasia, SPECT/CT, and SPECT-CT. Citations for 981 articles and 128 abstracts of full articles were reviewed by two coauthors for relevance. Twenty-four peer-reviewed studies on SPECT/CT parathyroid scintigraphy qualified for inclusion. The Quality Assessment of Diagnostic Accuracy Studies-2 tool was used to assess study quality. Meta-analytical techniques were used to obtain pooled estimates of the parathyroid adenoma localization rate using a random-effects model. RESULTS A total of 24 studies published between January 2003 and March 2014 with 1276 patients (334 men, 762 women, and 180 of unspecified sex) met the inclusion criteria. Data on the test performance of dual-phase 99mTc-sestamibi SPECT/CT showed an estimated pooled sensitivity (per-patient analysis) of 0.86 [confidence interval (CI) 0.81-0.90]. Sensitivity of SPECT/CT was superior to that of SPECT (0.74; CI 0.66-0.82) and planar (0.70; CI 0.61-0.80) techniques. Heterogeneity was present in the reported literature (I2=80.3%). The rate of ectopic parathyroid adenomas ranged between 4 and 20% and SPECT/CT was superior to SPECT and planar imaging for localization of ectopic sites. CONCLUSION Utilization of SPECT/CT fusion imaging for 99mTc-sestamibi parathyroid scintigraphy improves the test performance compared with planar and SPECT imaging; it assists preoperative planning for a minimally invasive surgical approach for the neck and is of value in subgroups with ectopic glands or coexisting nodular thyroid disease.
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Surgical options for primary hyperparathyroidism. ANNALES D'ENDOCRINOLOGIE 2015; 76:638-42. [PMID: 26505316 DOI: 10.1016/j.ando.2015.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 08/20/2015] [Indexed: 11/21/2022]
Abstract
Over the last two decades, surgery for primary hyperparathyroidism has evolved to offer a panel of procedures based on improvements in imaging, new technology and, consequently, novel surgical techniques. Multiple courses of action are possible, consistent with varying degrees of complexity. From the simplest scenario of a single adenoma localized by at least two preoperative tests in the context of sporadic primary hyperparathyroidism, to revision surgery related to recurrent, persistent or multiglandular disease, the surgeon has the opportunity to adapt his strategy. However, whatever surgical approach is used, even in the absence of formal guidelines, the clinical judgment of an experienced and skilled practitioner in endocrine surgery is the real guide and key of success in complex situations.
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Treglia G, Sadeghi R, Schalin-Jäntti C, Caldarella C, Ceriani L, Giovanella L, Eisele DW. Detection rate of 99m
Tc-MIBI single photon emission computed tomography (SPECT)/CT in preoperative planning for patients with primary hyperparathyroidism: A meta-analysis. Head Neck 2015; 38 Suppl 1:E2159-72. [DOI: 10.1002/hed.24027] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2015] [Indexed: 11/10/2022] Open
Affiliation(s)
- Giorgio Treglia
- Department of Nuclear Medicine; PET/CT and Thyroid Center, Oncology Institute of Southern Switzerland; Bellinzona Switzerland
| | - Ramin Sadeghi
- Nuclear Medicine Research Center, Mashhad University of Medical Sciences; Mashhad Iran
| | - Camilla Schalin-Jäntti
- Division of Endocrinology; Abdominal Center, University of Helsinki and Helsinki University Central Hospital; Helsinki Finland
| | | | - Luca Ceriani
- Department of Nuclear Medicine; PET/CT and Thyroid Center, Oncology Institute of Southern Switzerland; Bellinzona Switzerland
| | - Luca Giovanella
- Department of Nuclear Medicine; PET/CT and Thyroid Center, Oncology Institute of Southern Switzerland; Bellinzona Switzerland
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Ozkaya M, Elboga U, Sahin E, Kalender E, Korkmaz H, Demir HD, Celen YZ, Erkılıç S, Gökalp A, Maralcan G. Evaluation of conventional imaging techniques on preoperative localization in primary hyperparathyroidism. Bosn J Basic Med Sci 2015; 15:61-6. [PMID: 25725146 DOI: 10.17305/bjbms.2015.207] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 12/12/2014] [Accepted: 12/12/2014] [Indexed: 11/16/2022] Open
Abstract
We aimed to evaluate the diagnostic and preoperative localization capacity of 99mTc methoxyisobutylnitrile (MIBI) parathyroid scintigraphy and ultrasonography (USG) in enlarged parathyroid glands in the primary hyperparathyroidism (pHPT) as well as the relationship between the success rate of these techniques and biochemical values. In this study, we retrospectively evaluated 39 patients with clinical and biological evidence of pHPT who referred to the university hospital for MIBI parathyroid scintigraphy. Patients were examined with USG and double-phase MIBI parathyroid scintigraphy for the detection of enlarged parathyroid glands. Preoperative serum intact parathyroid hormone (iPTH) levels, calcium (Ca), phosphate and alkaline phosphatase measurements were obtained. A total of 45 parathyroid lesions in 39 patients were reviewed. Thirty-four patients had a single adenoma and 5 patients with multi-gland disease had 11 abnormal parathyroid glands including three adenomas, whereas the remaining 8 glands showed hyperplasia. The overall sensitivities of MIBI parathyroid scintigraphy, USG and combined techniques were 85.3%, 72.5% and 90.4%, respectively; the positive predictive values (PPV) were 89.7%, 85.2% and 92.6%, respectively. The most successful approach for detection of enlarged parathyroid glands in hyperparathyroidism is the concurrent application of USG and MIBI parathyroid scintigraphy modalities. The concomitancy of thyroid diseases decreases the sensitivity of both MIBI parathyroid scintigraphy and USG in enlarged parathyroid glands.
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Affiliation(s)
- Mesut Ozkaya
- Department of Endocrinology, Gaziantep University, Gaziantep, Turkey..
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Wong KK, Fig LM, Youssef E, Ferretti A, Rubello D, Gross MD. Endocrine scintigraphy with hybrid SPECT/CT. Endocr Rev 2014; 35:717-46. [PMID: 24977318 DOI: 10.1210/er.2013-1030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nuclear medicine imaging of endocrine disorders takes advantage of unique cellular properties of endocrine organs and tissues that can be depicted by targeted radiopharmaceuticals. Detailed functional maps of biodistributions of radiopharmaceutical uptake can be displayed in three-dimensional tomographic formats, using single photon emission computed tomography (CT) that can now be directly combined with simultaneously acquired cross-sectional anatomic maps derived from CT. The integration of function depicted by scintigraphy and anatomy with CT has synergistically improved the efficacy of nuclear medicine imaging across a broad spectrum of clinical applications, which include some of the oldest imaging studies of endocrine dysfunction.
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Affiliation(s)
- Ka Kit Wong
- Nuclear Medicine/Radiology Department (K.K.W., E.Y., M.D.G.), University of Michigan Hospital, Ann Arbor, Michigan 48109; Nuclear Medicine Service (K.K.W., L.M.F., M.D.G.), Department of Veterans Affairs Health System, Ann Arbor, Michigan 48105; and Department of Nuclear Medicine (A.F., D.R.), Radiology, Medical Physics, Santa Maria della Misericordia Hospital, 45100 Rovigo, Italy
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Brazenor GA, Malham GM, Ballok ZE. Co-registration of isotope bone scan with CT scan and MRI in the investigation of spinal pathology. J Clin Neurosci 2014; 21:1617-21. [PMID: 24798908 DOI: 10.1016/j.jocn.2013.11.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 11/16/2013] [Indexed: 10/25/2022]
Abstract
Image fusion software enables technetium(99m)-methylene diphosphonate (Tc(99m)-MDP) bone scan images to be co-registered with CT scan or MRI, allowing greater anatomical discrimination. We examined the role of bone scan images co-registered with CT scan or MRI in the investigation of patients presenting with axial spinal pain and/or limb pain. One hundred and thirty-nine consecutive patients were examined, and thereafter investigated with CT scan, MRI, and/or dynamic plain films. At this point diagnosis (pathology type and anatomical site) and treatment intention were declared. The co-registered Tc(99m)-MDP bone scan images were then studied, after which diagnosis (pathology type and anatomical site) and treatment intention were re-declared. This data were then analysed to determine whether the addition of co-registered bone scan images resulted in any change in diagnosis or treatment intention. The most significant change in diagnosis was pathology type (10%). Anatomical site changed markedly without overlap of the pre and post-isotope fields in 5%, and with overlap in 10%. Treatment intention had a major change in 3.6% and minor change in 8.6%. In the two groups where there was (i) no obvious pathology after full pre-isotope investigation, or (ii) a spinal fusion under suspicion, addition of the bone scan information led to a major change in the pathology and/or anatomical localisation in 18% and 19%, respectively. The addition of co-registered Tc(99m)-MDP bone scan images offers significant diagnostic assistance, particularly in the difficult diagnostic groups where a failed spinal fusion may be the suspected pain generator, or when no pain generator can otherwise be found.
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Affiliation(s)
- Graeme A Brazenor
- Neuroscience Clinical Institute, Epworth Hospital, Melbourne, VIC, Australia
| | - Gregory M Malham
- Neuroscience Clinical Institute, Epworth Hospital, Melbourne, VIC, Australia.
| | - Zita E Ballok
- Nuclear Medicine Department, Primary Healthcare Imaging, Epworth Hospital, Melbourne, VIC, Australia
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Preoperative ⁹⁹mTc-sestamibi scintigraphy in patients with primary hyperparathyroidism and concomitant nodular goiter: comparison of SPECT-CT, SPECT, and planar imaging. Nucl Med Commun 2013; 33:1070-6. [PMID: 22825041 DOI: 10.1097/mnm.0b013e32835710b6] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
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. However, the assessment of this technique for the detection of parathyroid adenoma in patients with a nodular goiter was performed in only one study with a small sample size. The aim of this prospective study was to assess the role of 99mTc-sestamibi parathyroid SPECT-CT scans for localization of parathyroid adenomas with a concomitant nodular goiter using 99mTc-methoxyisobutyl isonitrile (MIBI) scintigraphy and to compare it with SPECT and planar imaging. METHODS This study was conducted on 48 patients with primary hyperparathyroidism and nodular goiter, who were candidates for parathyroid surgery and had been referred for parathyroid scintigraphy. The patients underwent an early set of planar 99mTc-MIBI scanning procedures first, followed by SPECT and CT scannings, and finally a delayed set of planar 99mTc-MIBI scannings. Sensitivity, specificity, negative and positive predictive values, and accuracy were determined on a per-parathyroid-gland basis for each scanning method, as defined by histology and follow-up. RESULTS The surgery was successful in 48 out of 50 patients with primary hyperparathyroidism concomitant with thyroid nodularity, and data were completed for 80 sites in 48 patients. The accuracy of SPECT-CT in correctly identifying a parathyroid adenoma was 85.00, versus 75.00% for SPECT (P=0.01, significant). The sensitivity and specificity for SPECT-CT were 77.55 and 96.77%, respectively, versus 67.34 and 87.09%, respectively, for SPECT (P=0.12 and 0.12, not significant). There were nine sites that showed better localization on SPECT-CT scans relative to SPECT images, of which five sites were located in the ectopic regions. CONCLUSION The results of our study indicate that SPECT-CT is more accurate than sestamibi planar imaging and SPECT for the preoperative identification of parathyroid lesions in patients with primary hyperparathyroidism concomitant with thyroid nodularity. Also, we would recommend the use of SPECT-CT for a workup of all patients with ectopic glands who are scheduled for minimally invasive parathyroid surgery.
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Pata G, Casella C, Magri GC, Lucchini S, Panarotto MB, Crea N, Giubbini R, Salerni B. Financial and clinical implications of low-energy CT combined with 99m Technetium-sestamibi SPECT for primary hyperparathyroidism. Ann Surg Oncol 2011; 18:2555-63. [PMID: 21409487 DOI: 10.1245/s10434-011-1641-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2010] [Indexed: 01/02/2023]
Abstract
BACKGROUND (99m)Technetium-sestamibi hybrid SPECT/CT has been favored over conventional SPECT in preoperative evaluation of primary hyperparathyroidism (PHPT) patients. However, the financial implications of CT-image acquisition have never before been published. This prompted us to perform a cost analysis of the aforementioned nuclear procedures. METHODS A total of 55 PHPT patients operated on between 2004 and 2009 were studied. Overall, 27 patients underwent SPECT and 28 SPECT/CT. Localization results, as well as diagnostic and clinical cost variations between SPECT and SPECT/CT patients, were compared. RESULTS SPECT/CT revealed higher sensitivity than SPECT (96.7 vs 79.3%; P = .011), as well as higher specificity (96.4 vs 82.4%; P = .037) and positive predictive value (PPV) (96.7 vs 83%; P = .038) for correctly identifying the neck-side affected by PHPT. Likewise, SPECT/CT disclosed higher sensitivity (86.7 vs 61.1%; P < .0001), specificity (97.4 vs 90%; P = .022), and PPV (86.7 vs 65.7%; P = .0001) for correct neck-quadrant identification. The mean operative time decreased from 62 min following SPECT to 36 min following SPECT/CT (P < .0001), yielding a mean surgical expense saving of 109.9 <euro>/patient (updated at 2009/2010 billing database). SPECT/CT actually ensures a mean expenditure reduction of 98.7 <euro>/patient (95% CI: 47.96 <euro>-149.42 <euro>), diagnostic costs variation amounting to 11.2 <euro>/procedure. CONCLUSIONS SPECT/CT ensures better focus for the surgical exploration, shortens surgical times, and eventually cuts costs when used for localization of parathyroid adenomas.
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Affiliation(s)
- Giacomo Pata
- Department of Medical and Surgical Sciences, 1st Division of General Surgery, University of Brescia, Brescia, Italy.
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Minimally invasive radio-guided surgery for primary hyperparathyroidism: From preoperative to intraoperative localization imaging. ANNALES D'ENDOCRINOLOGIE 2010; 71:511-8. [DOI: 10.1016/j.ando.2010.08.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Accepted: 08/06/2010] [Indexed: 11/18/2022]
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Levine DS, Wiseman SM. Fusion imaging for parathyroid localization in primary hyperparathyroidism. Expert Rev Anticancer Ther 2010; 10:353-363. [DOI: 10.1586/era.10.11] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Clinical utility of ultrasound and 99mTc sestamibi SPECT/CT for preoperative localization of parathyroid adenoma in patients with primary hyperparathyroidism. Clin Radiol 2010; 65:278-87. [PMID: 20338394 DOI: 10.1016/j.crad.2009.12.005] [Citation(s) in RCA: 119] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2009] [Revised: 11/30/2009] [Accepted: 12/03/2009] [Indexed: 01/02/2023]
Abstract
AIM To evaluate the accuracy of ultrasound and parathyroid scintigraphy using single photon-emission computed tomography/computed tomography (SPECT/CT) for the preoperative localization of solitary parathyroid adenomas in patients with primary hyperparathyroidism who would be suitable for minimally invasive parathyroid surgery. MATERIALS AND METHODS Retrospective study of 63 consecutive patients with biochemical evidence of primary hyperparathyroidism referred for preoperative localization of parathyroid adenoma that proceeded to surgery in the same institution. All patients underwent high-resolution ultrasound and Technetium-99m sestamibi scintigraphy with planar and SPECT/CT imaging. The accuracy of preoperative imaging was compared to surgical and histological findings as the reference standard. RESULTS Fifty-nine patients had solitary parathyroid adenomas, three patients had multiglandular hyperplasia, and one patient had multiple parathyroid adenomas confirmed at surgery and histology. Thirty-five solitary parathyroid adenomas were identified preoperatively with ultrasound (64%) and 53 with SPECT-CT (90%). Concordant ultrasound and SPECT/CT findings were found in 35 cases (59%). An additional three adenomas were found with ultrasound alone and 18 adenomas with SPECT/CT alone. Fifty-one of the 56 adenomas localized using combined ultrasound and SPECT/CT were found at the expected sites during surgery. Combined ultrasound and SPECT/CT has an overall sensitivity of 95% and accuracy of 91% for the preoperative localization of solitary parathyroid adenomas. CONCLUSIONS The combination of ultrasound and SPECT/CT has incremental value in accurately localizing solitary parathyroid adenomas over either technique alone, and allows selection of patients with primary hyperparathyroidism who would be suitable for minimally invasive surgery.
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Abstract
BACKGROUND DATA Computed tomography (CT) together with 99mTc-sestamibi single photon emission computed tomography (MIBI-SPECT) image fusion (CT-MIBI-SPECT image fusion) allows virtual exploration of the neck. The aim of this study was to evaluate whether CT-MIBI-SPECT image fusion is superior to MIBI-SPECT and CT in detecting abnormal parathyroid glands in patients with primary hyperparathyroidism. METHODS CT-MIBI-SPECT image fusion for preoperative localization was performed in 116 patients with primary hyperparathyroidism (pHPT). Both investigations were performed with reproducible fixation of the patient on a vacuum mattress. At a special work station the neck was virtually explored by viewing the CT images in all 3 dimensions. The MIBI-SPECT images were superimposed on underlying CT images. Only patients with single-gland disease were evaluated (pHPT: 112, persistent pHPT: 1, recurrent pHPT: 1, persistent secondary hyperparathyroidism: 1, tertiary HPT after kidney transplantation: 1). CT-MIBI-SPECT image fusion results were compared with those obtained with CT alone and MIBI-SPECT alone. The predicted positions were correlated with the intraoperative findings. RESULTS CT-MIBI-SPECT image fusion was able to predict the exact position of the abnormal gland in 102 (88%) of the 116 patients, whereas CT alone showed in 75 (65%) patients and MIBI-SPECT alone in 64 (55%) patients the exact position of the abnormal gland. Sixty-two patients underwent minimally invasive surgery, namely in 21 patients with a unilaterally focused approach and in 33 patients with a bilateral approach (27 of these underwent simultaneous thyroid resection). Sensitivity for CT-MIBI-SPECT image fusion was 88%, for CT alone 70%, and for MIBI-SPECT alone 59%. Specificity for CT-MIBI-SPECT image fusion was 99%, for MIBI-SPECT alone 95%, for CT alone 94%. Overall accuracy for CT-MIBI-SPECT image fusion was 97%, for CT alone 89%, for MIBI-SPECT 87%. CONCLUSIONS This study provides evidence that CT-MIBI-SPECT image fusion is superior to CT or MIBI-SPECT alone for preoperative localization of enlarged parathyroid glands in patients with single-gland primary hyperparathyroidism.
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CT-MIBI-SPECT image fusion predicts multiglandular disease in hyperparathyroidism. Langenbecks Arch Surg 2009; 395:73-80. [DOI: 10.1007/s00423-009-0545-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2009] [Accepted: 07/14/2009] [Indexed: 12/18/2022]
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Mihai R, Simon D, Hellman P. Imaging for primary hyperparathyroidism—an evidence-based analysis. Langenbecks Arch Surg 2009; 394:765-84. [PMID: 19590890 DOI: 10.1007/s00423-009-0534-4] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2009] [Accepted: 06/18/2009] [Indexed: 10/20/2022]
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de la Quintana Basarrate A, Díaz Aguirregoitia FJ, Gil Sánchez J, Barturen Barroso Á, Gaztambide Saez S, Echenique Elizondo M, Perdigo Bilbao L. Valor de la ecoendoscopia transesofágica en el diagnóstico de localización en el hiperparatiroidismo primario. Cir Esp 2009; 85:360-4. [DOI: 10.1016/j.ciresp.2008.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2008] [Accepted: 12/01/2008] [Indexed: 10/20/2022]
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Eslamy HK, Ziessman HA. Parathyroid scintigraphy in patients with primary hyperparathyroidism: 99mTc sestamibi SPECT and SPECT/CT. Radiographics 2008; 28:1461-76. [PMID: 18794320 DOI: 10.1148/rg.285075055] [Citation(s) in RCA: 118] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The clinical diagnosis of primary hyperparathyroidism is based largely on serum laboratory test results, as patients often are asymptomatic. Surgery, often with bilateral exploration of the neck, has been considered the definitive treatment for symptomatic disease. However, given that approximately 90% of cases are due to a single parathyroid adenoma, a better treatment may be the selective surgical excision of the hyperfunctioning parathyroid gland after its preoperative identification and localization at radiologic imaging. Scintigraphy and ultrasonography are the imaging modalities most often used for preoperative localization. Various scintigraphic protocols may be used in the clinical setting: Single-phase dual-isotope subtraction imaging, dual-phase single-isotope imaging, or a combination of the two may be used to obtain planar or tomographic views. Single photon emission computed tomography (SPECT) with the use of technetium-99m ((99m)Tc) sestamibi as the radiotracer, especially when combined with x-ray-based computed tomography (CT), is particularly helpful for preoperative localization: The three-dimensional functional information from SPECT is fused with the anatomic information obtained from CT. In addition, knowledge of the anatomy and embryologic development of the parathyroid glands and the pathophysiology of primary hyperparathyroidism aid in the identification and localization of hyperfunctioning glands.
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Affiliation(s)
- Hedieh K Eslamy
- Division of Nuclear Medicine, Russell H. Morgan Department of Radiology, Johns Hopkins Medical Institutions, 601 N Caroline St, Baltimore, MD 21278, USA.
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Neumann DR, Obuchowski NA, Difilippo FP. Preoperative 123I/99mTc-sestamibi subtraction SPECT and SPECT/CT in primary hyperparathyroidism. J Nucl Med 2008; 49:2012-7. [PMID: 18997051 DOI: 10.2967/jnumed.108.054858] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
UNLABELLED The trend toward focused surgical parathyroidectomy requires precise preoperative localization of parathyroid lesions in patients with hyperparathyroidism. The purpose of this study was to directly compare the diagnostic accuracy of (99m)Tc-sestamibi/(123)I subtraction SPECT with SPECT/CT for the localization of abnormal parathyroid glands in patients with primary hyperparathyroidism. METHODS A total of 61 consecutive surgical patients with primary hyperparathyroidism underwent both (123)I/(99m)Tc-sestamibi subtraction SPECT and SPECT/CT scans preoperatively, using a hybrid SPECT/CT instrument that combined a dual-detector SPECT camera with a 6-slice multidetector spiral CT scanner. Four hours after being given (123)I-sodium iodide orally, each patient received (99m)Tc-sestamibi intravenously, followed immediately by a simultaneous, dual-isotope SPECT scan of the neck and upper chest. Then, without moving the patient, we performed a non-contrast-enhanced CT scan of the same body region. Normalization and subtraction of the (123)I SPECT images from the (99m)Tc SPECT images were performed. The subtraction SPECT and the coregistered fused SPECT/CT studies were interpreted separately, with images scored on a 5-point scale. Surgical and histopathologic findings were used as the standard of comparison. RESULTS Surgery was successful in 57 patients (solitary parathyroid adenoma in 48 patients, double parathyroid adenomas in 6 patients, and 10 hyperplastic parathyroid glands in 3 patients). The sensitivities of SPECT (50/70 = 71%) and SPECT/CT (49/70 = 70%) were similar (P = 0.779). The specificity of SPECT/CT (26/27 = 96%) was significantly greater than that of SPECT (13/27 = 48%; P = 0.006). The receiver-operating-characteristic area under the curve of SPECT/CT (0.833) was significantly greater than that of SPECT (0.632; P < 0.001). CONCLUSION SPECT/CT is significantly more specific than dual-isotope subtraction SPECT for the preoperative identification of parathyroid lesions in patients with primary hyperparathyroidism.
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Affiliation(s)
- Donald R Neumann
- Department of Nuclear Medicine, Cleveland Clinic Imaging Institute, Cleveland, Ohio, USA.
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Libánský P, Astl J, Adámek S, Nanka O, Pafko P, Spacková J, Foltán R, Sedý J. Surgical treatment of primary hyperparathyroidism in children: report of 10 cases. Int J Pediatr Otorhinolaryngol 2008; 72:1177-82. [PMID: 18513806 DOI: 10.1016/j.ijporl.2008.04.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2008] [Revised: 04/08/2008] [Accepted: 04/14/2008] [Indexed: 11/30/2022]
Abstract
Primary hyperparathyroidism in children is very rare. It is caused by overproduction of parathormone by a pathologically changed parathyroid gland. We carried out a retrospective study in 10 patients (age 10-17 years) who had surgical treatment between 1996 and 2007. The main signs of primary hyperparathyroidism were urolithiasis, nephrolithiasis, nephrocalcinosis and bone resorption, as well as non-specific signs such as fatigue, torpidness and muscle weakness. Patients were examined using sonography, MIBI-scintigraphy, CT and MRI. Calcium was measured before and after surgery; parathormone was monitored postoperatively. Surgery was curative in nine patients; reoperation was necessary in one patient because an ectopic parathyroid gland was not detected during the primary operation. Other major complications were not observed. Removal of pathologically changed parathyroid glands offers definitive and safe treatment of primary hyperparathyroidism in children. Special care should be taken if an ectopic parathyroid gland is suspected.
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Affiliation(s)
- Petr Libánský
- Third Department of Surgery, First Faculty of Medicine and Teaching Hospital Motol, V Uvalu 84, 150 06 Prague 5, Czech Republic
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Papathanassiou D, Flament JB, Pochart JM, Patey M, Marty H, Liehn JC, Schvartz C. SPECT/CT in localization of parathyroid adenoma or hyperplasia in patients with previous neck surgery. Clin Nucl Med 2008; 33:394-7. [PMID: 18496444 DOI: 10.1097/rlu.0b013e318170d4a5] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE Single photon emission computed tomography/computed tomography (SPECT/CT) now makes it possible to use combined morphologic CT and functional scintigraphy information. It has proved useful for localization of abnormal parathyroid glands, especially in the case of an ectopic gland. We experienced that it was also beneficial for patients with a history of previous neck surgery, and we report 4 cases in this entity. MATERIALS AND METHODS Four patients with prior neck surgery and hyperparathyroidism underwent parathyroid Tc-99m MIBI scintigraphy with SPECT/CT. Two patients had undergone surgery for hyperparathyroidism and 2 had undergone thyroidectomy, 1 for thyroid cancer and 1 for multinodular goiter. Parathyroid hormone levels were assessed during surgery, and patients were followed several months after treatment. RESULTS SPECT/CT successfully localized the abnormal gland, including an uncommon anterior situation for which previous surgery guided by planar imagery failed to cure the hyperparathyroidism. It allowed efficient surgical treatment, as confirmed by parathyroid hormone level normalization, without complications and with a relatively short operation time in those challenging cases. CONCLUSIONS SPECT/CT seems to be a useful tool for presurgical assessment in hyperparathyroidism, not only for ectopic glands but also for patients with previous neck surgery.
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Affiliation(s)
- Dimitri Papathanassiou
- Service de Médecine Nucléaire, Institut Jean Godinot, Centre Hospitalier et Universitaire de Reims, France.
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Virtual neck exploration in patients with hyperparathyroidism and former cervical operations. Langenbecks Arch Surg 2008; 393:687-92. [PMID: 18575883 DOI: 10.1007/s00423-008-0359-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2008] [Accepted: 05/27/2008] [Indexed: 01/02/2023]
Abstract
BACKGROUND In surgery for primary hyperparathyroidism, preoperative localization together with intraoperative parathyroid hormone assay is important when minimal invasive operations of the parathyroid glands are intended. In cases of reoperation, correct localization of the abnormal parathyroid glands is extremely instrumental. Computed tomography (CT)-(99m)Tc-sestamibi (MIBI)-single photon emission computed tomography (SPECT) image fusion allows for a virtual exploration of the neck by showing the suspected gland three-dimensionally with all the anatomic landmarks in correct position. The aim of this study was to evaluate whether CT-MIBI-SPECT image fusion is superior to MIBI-SPECT alone in detecting abnormal parathyroid glands in patients with previous neck surgery. PATIENTS AND METHODS In a prospective study, CT-MIBI-SPECT image fusion for preoperative localization was performed in 28 patients with hyperparathyroidism and previous neck surgery. Twenty-one patients had thyroidectomy and seven patients had surgery for hyperparathyroidism. The results of MIBI-SPECT alone and CT-MIBI-SPECT image fusion were compared in these patients. The outcome and the exact predicted position, not just the predicted side, were correlated with intraoperative findings. RESULTS CT-MIBI-SPECT image fusion was able to predict the exact position of the abnormal gland in 24 of 28 patients (86%), whereas MIBI-SPECT alone was successful in 12 of 28 cases (43%, p < 0.004) only. CT-MIBI-SPECT image fusion detected all three pathologic glands in their ectopic position. With MIBI-SPECT alone, just one ectopic pathologic gland was found. CONCLUSION This study provides evidence that CT-MIBI-SPECT image fusion is superior to MIBI-SPECT alone in preoperative localization of enlarged parathyroid glands in patients with hyperparathyroidism and previous neck surgery. This should be kept in mind if the results are compared to earlier studies concerning CT-MIBI-SPECT image fusion.
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Value of 123I-Subtraction and Single-Photon Emission Computed Tomography in Addition to Planar 99mTc-MIBI Scintigraphy Before Parathyroid Surgery. Surg Today 2007; 37:1033-41. [DOI: 10.1007/s00595-007-3550-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2006] [Accepted: 03/02/2007] [Indexed: 11/26/2022]
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Johnson NA, Tublin ME, Ogilvie JB. Parathyroid imaging: technique and role in the preoperative evaluation of primary hyperparathyroidism. AJR Am J Roentgenol 2007; 188:1706-15. [PMID: 17515397 DOI: 10.2214/ajr.06.0938] [Citation(s) in RCA: 188] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE This article discusses the commonly used techniques for imaging the parathyroid glands and their role in the preoperative evaluation of patients with primary hyperparathyroidism. CONCLUSION The importance of sonography and sestamibi scintigraphy in the preoperative evaluation of patients with primary hyperthyroidism has increased with the adoption of minimally invasive parathyroidectomy techniques at most medical centers. When the results of these studies are concordant, the cure rates of minimally invasive surgery equal those of traditional bilateral neck exploration.
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Affiliation(s)
- Nathan A Johnson
- Department of Radiology, University of Pittsburgh Medical Center and School of Medicine, 200 Lothrop St., 3950 CHP/MT, Pittsburgh, PA 15213, USA
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Moncayo R, Rudisch A, Kremser C, Moncayo H. 3D-MRI rendering of the anatomical structures related to acupuncture points of the Dai mai, Yin qiao mai and Yang qiao mai meridians within the context of the WOMED concept of lateral tension: implications for musculoskeletal disease. BMC Musculoskelet Disord 2007; 8:33. [PMID: 17425796 PMCID: PMC1854901 DOI: 10.1186/1471-2474-8-33] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2006] [Accepted: 04/10/2007] [Indexed: 11/18/2022] Open
Abstract
Background A conceptual model of lateral muscular tension in patients presenting thyroid associated ophthalmopathy (TAO) has been recently described. Clinical improvement has been achieved by using acupuncture on points belonging to the so-called extraordinary meridians. The aim of this study was to characterize the anatomical structures related to these acupuncture points by means of 3D MRI image rendering relying on external markers. Methods The investigation was carried out the index case patient of the lateral tension model. A licensed medical acupuncture practitioner located the following acupuncture points: 1) Yin qiao mai meridian (medial ankle): Kidney 3, Kidney 6, the plantar Kidney 6 (Nan jing description); 2) Yang qiao mai meridian (lateral ankle): Bladder 62, Bladder 59, Bladder 61, and the plantar Bladder 62 (Nan jing description); 3) Dai mai meridian (wait): Liver 13, Gall bladder 26, Gall bladder 27, Gall bladder 28, and Gall bladder 29. The points were marked by taping a nitro-glycerin capsule on the skin. Imaging was done on a Siemens Magnetom Avanto MR scanner using an array head and body coil. Mainly T1-weighted imaging sequences, as routinely used for patient exams, were used to obtain multi-slice images. The image data were rendered in 3D modus using dedicated software (Leonardo, Siemens). Results Points of the Dai mai meridian – at the level of the waist – corresponded to the obliquus externus abdominis and the obliquus internus abdominis. Points of the Yin qiao mai meridian – at the medial side of the ankle – corresponded to tendinous structures of the flexor digitorum longus as well as to muscular structures of the abductor hallucis on the foot sole. Points of the Yang qiao mai meridian – at the lateral side of the ankle – corresponded to tendinous structures of the peroneus brevis, the peroneous longus, and the lateral surface of the calcaneus and close to the foot sole to the abductor digiti minimi. Conclusion This non-invasive MRI investigation has revealed the anatomical relations of acupuncture points belonging to 3 of the so-called extraordinary meridians. We conclude that the clinically developed "WOMED concept of lateral tension" is related to tendino-muscular structures.
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Affiliation(s)
- Roy Moncayo
- WOMED, Karl-Kapferer-Strasse 5, A-6020 Innsbruck, Austria
| | - Ansgar Rudisch
- Innsbruck Medical University, Department of Radiology I, A-6020 Innsbruck, Austria
| | - Christian Kremser
- Innsbruck Medical University, Department of Radiology I, A-6020 Innsbruck, Austria
| | - Helga Moncayo
- WOMED, Karl-Kapferer-Strasse 5, A-6020 Innsbruck, Austria
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Lo CY, Lang BH, Chan WF, Kung AWC, Lam KSL. A prospective evaluation of preoperative localization by technetium-99m sestamibi scintigraphy and ultrasonography in primary hyperparathyroidism. Am J Surg 2007; 193:155-9. [PMID: 17236840 DOI: 10.1016/j.amjsurg.2006.04.020] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2006] [Revised: 04/10/2006] [Accepted: 04/10/2006] [Indexed: 10/23/2022]
Abstract
BACKGROUND Ultrasonography (USG) and technetium-99m sestamibi (MIBI) scintigraphy are commonly used imaging modalities in the era of minimally invasive parathyroidectomy (MIP) for primary hyperparathyroidism (pHPT). However, their relative importance and actual contribution to MIP have not been prospectively assessed. METHODS A total of 100 consecutive pHPT patients planning for MIP were recruited. Both USG and MIBI findings were correlated with intraoperative findings and postoperative outcome. Clinicopathologic factors were examined for potential association with a correct localizing result. RESULTS Thirty men and 70 women (age range 13 to 93 years [median 55.5]) were included in the study. The final pathology included 98 patients with solitary adenoma and 2 patients with multiglandular disease. The sensitivities, accuracies, and positive predicted values for USG and MIBI alone were 57% vs 89%, 56% vs 85%, and 97% vs 94%, respectively. Correctly localized adenomas were significantly heavier than incorrectly localized ones. CONCLUSIONS MIBI is preferred over USG in pHPT patients planning for MIP. Weight of adenoma appeared to be the only clinicopathologic factor determining localization accuracy.
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Affiliation(s)
- Chung-Yau Lo
- Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Pokfulam Road, Hong Kong, China.
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McDonald M, Cooper R, Wang MY. Use of computed tomography–single-photon emission computed tomography fusion for diagnosing painful facet arthropathy. Neurosurg Focus 2007; 22:E2. [PMID: 17608336 DOI: 10.3171/foc.2007.22.1.2] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
✓Facet disease is believed to play a major role in axial low-back pain and may prove in the future to be an important indication for posterior dynamic stabilization. However, the lack of good diagnostic tests and imaging methods for identifying this condition have made this entity obscure. Although single-photon emission computed tomography (SPECT) imaging is a highly sensitive and specific test, the images frequently lack adequate resolution, whereas computed tomography (CT) provides excellent resolution but lacks specificity.
Thirty-seven patients with back pain clinically attributable to facet disease underwent CT–SPECT fusion imaging of the lumbar spine. The SPECT images were obtained using a dual-head gamma camera equipped with VXGP high-resolution collimators using a 20% energy window centered at 140 keV and a 360° rotation totaling 128 projections at 16 seconds each. Transaxial CT images were transferred in the Digital Imaging and Communications in Medicine format to provide proper image overlay in the axial, sagittal, and coronal planes. Scanning for both modalities was performed using standard patient positioning. Patients with concordant images and symptoms then underwent joint injection and/or rhizotomy, which was performed by an independent physician.
Image fusion was successfully performed in all patients, and the image quality allowed definitive localization of the “hot” lesion in all cases, in contrast to conventional high-resolution SPECT scanning, which often led to problems differentiating L4/5 and L5/S1. In patients with solitary lesions, injection led to definitive pain resolution, even if temporary, in all cases with anesthetic blockade.
The CT–SPECT scanning modality combines the virtues of functional and anatomical imaging, aiding the clinician in making the diagnosis of painful facet arthropathy. This modality may prove useful for the selection of patients who are candidates for posterior dynamic stabilization.
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Affiliation(s)
- Matthew McDonald
- Department of Neurological Surgery, Royal Adelaide Hospital, Adelaide, Australia
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Widmann G. Image-guided surgery and medical robotics in the cranial area. Biomed Imaging Interv J 2007; 3:e11. [PMID: 21614255 PMCID: PMC3097655 DOI: 10.2349/biij.3.1.e11] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2006] [Accepted: 02/21/2007] [Indexed: 11/17/2022] Open
Abstract
Surgery in the cranial area includes complex anatomic situations with high-risk structures and high demands for functional and aesthetic results. Conventional surgery requires that the surgeon transfers complex anatomic and surgical planning information, using spatial sense and experience. The surgical procedure depends entirely on the manual skills of the operator. The development of image-guided surgery provides new revolutionary opportunities by integrating presurgical 3D imaging and intraoperative manipulation. Augmented reality, mechatronic surgical tools, and medical robotics may continue to progress in surgical instrumentation, and ultimately, surgical care. The aim of this article is to review and discuss state-of-the-art surgical navigation and medical robotics, image-to-patient registration, aspects of accuracy, and clinical applications for surgery in the cranial area.
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Affiliation(s)
- G Widmann
- Department of Radiology, Innsbruck Medical University, Anichstr, Austria
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Abstract
The introduction of fusion of functional and anatomical imaging modalities into the field of endocrinology led to a major breakthrough in diagnosis, staging, and follow-up of patients with endocrine tumors. The management of endocrine tumors is based on a wide variety of conventional techniques, including computed tomography, ultrasound, or magnetic resonance imaging, and on scintigraphic functional techniques, associated with unique uptake and transport mechanisms and with the presence of high density of membrane receptors on some of these tumors. Anatomical modalities provide accurate detection and localization of morphological abnormalities, whereas nuclear medicine studies reflect the pathophysiological status of the disease process. Lack of structural delineation and relatively low contrast hamper the precise anatomical localization of the abnormal functional findings in the presence of potential concurrent foci related to the physiological biodistribution of the radiotracer or to processes unrelated to the evaluated disease entity. The notion that anatomical high-resolution and functional imaging data act as complementary methods led to various combination techniques of these modalities. However, coregistration of the functional and anatomical data after the acquisition of the 2 imaging modalities on separate machines, in different sessions, fails to provide accurate alignment of data, and the mathematical modeling is too cumbersome to be used on a routine basis. In contrast, hybrid imaging devices of single-photon emission computed tomography/computed tomography in a single gantry enable the sequential acquisition of the two modalities, with subsequent merging of data into a composite image display. These hybrid studies have led to a revolution in the field of imaging, providing clinically relevant information that is not apparent on separate images. The present review evaluates the contribution of the integrated single-photon emission computed tomography/computed tomography technology to image analysis and management of patients with endocrine tumors.
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Affiliation(s)
- Yodphat Krausz
- Department of Medical Biophysics and Nuclear Medicine, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.
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Abstract
The management of primary hyperparathyroidism (PHPT) has dramatically changed in the last 5 yr. Many more patients now undergo focused, limited or minimally invasive parathyroidectomy instead of traditional bilateral neck exploration. This change has taken place because of the improved accuracy of pre-operative localizing studies in selecting patients who have single-gland parathyroid disease (single adenoma) and can therefore have a minimally invasive parathyroidectomy. Sestamibi scanning followed by ultrasound, magnetic resonance imaging (MRI) and computed tomography (CT) scans are most accurate for localizing parathyroid tumors in patients with PHPT. Selective venous catheterization for PTH levels is useful when other localizing studies are negative or discordant in patients with persistent or recurrent PHPT. The routine use of one or more localizing studies commonly identifies the parathyroid tumor in patients with single-gland disease; but if localizing studies are negative or discordant, patients should have intra-operative PTH levels monitored or have a bilateral neck exploration to ensure a high rate of biochemical cure.
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Affiliation(s)
- T Uruno
- Department of Surgery, University of California, San Francisco, CA, USA
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Freudenberg LS, Frilling A, Sheu SY, Görges R. Optimizing preoperative imaging in primary hyperparathyroidism. Langenbecks Arch Surg 2006; 391:551-6. [PMID: 16927111 DOI: 10.1007/s00423-006-0076-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Accepted: 06/06/2006] [Indexed: 11/28/2022]
Abstract
BACKGROUND Scintigraphy of the hyperfunctioning parathyroid glands using technetium 99m ((99m)Tc)-methoxyisobutylisonitrile ((99m)Tc-MIBI) is an established and highly sensitive preoperative localization tool whose importance has been further increased by advances in minimally invasive surgery . The goal of the present prospective study was to determine the benefit of optimized imaging in a consistent patient population. METHODS Eighty-four patients with first presentations of primary hyperparathyroidism were investigated with (99m)Tc-MIBI scintigraphy, thyroid scintigraphy, and cervical ultrasonography. The evaluation algorithm consisted of (a) evaluation of the planar images alone, (b) additional evaluation of single-photon emission computed tomography (SPECT), (c) additional evaluation of thyroid gland scintigraphy, and (d) additional evaluation of ultrasound. All patients subsequently underwent parathyroidectomy. The intraoperative and the histologic findings were correlated with the results of the scintigraphic imaging. RESULTS The sensitivity of planar parathyroid scintigraphy was 74% and could be increased to 91% by the additional investigations. The difference was statistically significant (p<0.05). At the same time, a small increase in specificity from 96% to 99% was seen. CONCLUSIONS Prior to minimally invasive treatment of hyperparathyroidism, we recommend combined localization studies consisting of sequential (99m)Tc-MIBI scintigraphy, additional SPECT plus thyroid gland scintigraphy, plus high-resolution cervical ultrasonography.
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Affiliation(s)
- Lutz S Freudenberg
- Department of Nuclear Medicine, University of Duisburg/Essen, Hufelandstrasse 55, 45122 Essen, Germany.
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Piga M, Serra A, Uccheddu A, Letizia Lai M, Faa G. Decisive presurgical role of MIBI SPECT/CT in identifying within a calcific thyroid nodule the parathyroid responsible for primary hyperparathyroidism. Surgery 2006; 140:837-8. [PMID: 17084734 DOI: 10.1016/j.surg.2006.04.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2006] [Revised: 04/06/2006] [Accepted: 04/07/2006] [Indexed: 10/24/2022]
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Krausz Y, Bettman L, Guralnik L, Yosilevsky G, Keidar Z, Bar-Shalom R, Even-Sapir E, Chisin R, Israel O. Technetium-99m-MIBI SPECT/CT in Primary Hyperparathyroidism. World J Surg 2005; 30:76-83. [PMID: 16369710 DOI: 10.1007/s00268-005-7849-2] [Citation(s) in RCA: 104] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The novel trend toward focused parathyroidectomy requires precise preoperative localization of the parathyroid adenoma in patients with primary hyperparathyroidism (PHPT). The present study evaluated the impact of hybrid single photon emission computed tomography/computed tomography (SPECT/CT), using 99mTc-sestamibi (MIBI), on the surgical management of these patients. In a retrospective study of 36 patients with PHPT, SPECT/CT was undertaken when planar 99mTc-MIBI scintigraphy was negative or when an ill-defined focus in the neck or an ectopic site on planar views was visualized. Imaging data were compared with intraoperative findings, and the incremental value of SPECT/CT to lesion localization and surgical procedure was assessed. Three patients with both negative planar and SPECT/CT studies subsequently underwent bilateral neck exploration, with multiglandular hyperplasia diagnosed in two patients and a parathyroid adenoma in one. Of 33 patients with a positive MIBI study, parathyroid adenoma was confined to the neck in 23 patients and to the lower neck-mediastinum in 10. SPECT/CT facilitated the surgical exploration of all 10 ectopic parathyroid adenomas and 4 of 23 cervical parathyroid adenomas, the latter four either at reexploration or in patients with nonvisualization of the thyroid after thyroidectomy. SPECT/CT contributed to the localization of parathyroid adenomas in patients with PHPT and to planning the surgical exploration in 14 of 36 (39%) patients, predominantly those with ectopic parathyroid adenomas or who had distorted neck anatomy.
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Affiliation(s)
- Yodphat Krausz
- Department of Medical Biophysics and Nuclear Medicine, Hadassah-Hebrew University Medical Center, PO Box 12000, Jerusalem, 91120, Israel.
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Gutman F, Hangard G, Gardin I, Varmenot N, Pattyn J, Clement JF, Dubray B, Véra P. Evaluation of a Rigid Registration Method of Lung Perfusion SPECT and Thoracic CT. AJR Am J Roentgenol 2005; 185:1516-24. [PMID: 16304006 DOI: 10.2214/ajr.04.1654] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The objective of our study was to evaluate a rigid registration method in lung perfusion SPECT using thoracic CT as a standard. MATERIALS AND METHODS The reproducibility of markers selection and the robustness of the method were assessed on a torso phantom. The accuracy of registration regarding the number and location of markers and the breathing state during CT was evaluated on eight patients using 10 external markers placed around the thorax before SPECT and CT acquisitions. The accuracy of registration was assessed using the mean errors (ME) between 10 markers after registration. RESULTS Registration using external markers on a phantom was accurate (ME, < 3 mm) when rotation was less than 40 degrees (p = 0.02). The accuracy of registration improved markedly from four to six markers for phantom (5.5-3.6 mm) and patients (11.2-9.5 mm) and then remained constant up to 10 markers. The ME was less when using markers that well encompassed the thorax for phantom and patients (p = 0.02 and p = 0.05, respectively). The use of four anatomic markers was not accurate (ME, 20 mm). CONCLUSION The registration method is reproducible and accurate, and six external markers were required to get an ME of less than 10 mm in patients.
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Affiliation(s)
- Fabrice Gutman
- Department of Nuclear Medicine, Rouen University Hospital Charles-Nicolle and Henri Becquerel Center, Laboratoire Universitaire QUANT.I.F., Rouen, France.
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Øgard CG, Vestergaard H, Thomsen JB, Jakobsen H, Almdal T, Nielsen SL. Parathyroid scintigraphy during hypocalcaemia in primary hyperparathyroidism. Clin Physiol Funct Imaging 2005; 25:166-70. [PMID: 15888097 DOI: 10.1111/j.1475-097x.2005.00604.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Minimally invasive parathyroid surgery in patients with primary hyperparathyroidism (PHPT) demands high imaging accuracy. By increasing blood flow to the parathyroid adenoma before injection of a perfusion marker, we intended to improve the parathyroid scintigraphy. We have named the technique stimulated parathyroid scintigraphy (SPS). METHODS Twenty minutes after injection of 100 MBq (99m)Tc-pertechnetate a thyroid scintigram was performed in 25 patients with PHPT. During the thyroid scintigraphy sodium citrate was infused which lowered plasma calcium by a mean of 14 +/- 1.3%. Then 700 MBq (99m)Tc-sestamibi was injected and another scintigram of the neck was obtained. Perchlorate was given at the end of the sestamibi scintigram to increase the wash-out of (99m)Tc-pertechnetate from the thyroid gland, and after 2 h a delayed scintigram was obtained. A subtraction of the thyroid scintigram from the initial sestamibi scintigram was performed. The results of SPS and a conventional (99m)Tc-sestamibi dual-phase parathyroid scintigraphy were compared with the operative findings. In nine patients the parathyroid adenoma was also localized with ultrasound and the flow pattern before and after citrate infusion was visualized with Doppler technique. RESULTS Eighty-eight per cent of the adenomas were localized correctly with the SPS technique compared with 62% at the conventional parathyroid scintigraphy. Tissue perfusion of the nine adenomas increased after citrate infusion. CONCLUSIONS SPS has a high accuracy and it is easy to perform. If only subtraction SPS is performed the whole examination can be completed within an hour, which is acceptable for same day surgery.
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Affiliation(s)
- Christina G Øgard
- Department of Clinical Physiology and Nuclear Medicine, Herlev University Hospital, Denmark
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