放射性ヨード甲状腺摂取率
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/08/19 11:20:45」(JST)
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| Radioactive iodine uptake test |
| Diagnostics |
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Thyroid scan with Iodine-123 for evaluation of hyperthyroidism.
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| ICD-9-CM |
92.01 |
| OPS-301 code |
3-701 |
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[edit on Wikidata]
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The radioactive iodine uptake test, or RAIU test, is a type of scan used in the diagnosis of thyroid problems, particularly hyperthyroidism. It is entirely different from radioactive iodine therapy (RAI therapy), which uses much higher doses to destroy cancerous cells. The RAIU test is also used as a follow up to RAI therapy to verify that no thyroid cells survived, which could still be cancerous.[1]
The patient swallows radioactive iodine in the form of capsule or fluid, and its absorption by the thyroid is studied after 4–6 hours and after 24 hours with the aid of a scintillation counter. The dose is typically 0.15–0.37 MBq (4–10 μCi) of 131I sodium iodide, or 3.7–7.4 MBq (100–200 μCi) of 123I sodium iodide.[2]
The normal uptake is between 15 and 25 percent, but this may be forced down if, in the meantime, the patient has eaten foods high in iodine, such as dairy products and seafood.[3] Low uptake suggests thyroiditis, high uptake suggests Graves' disease, and unevenness in uptake suggests the presence of a nodule.[4]
123I has a shorter half-life than 131I (a half day vs. 8.1 days), so use of 123I exposes the body to less radiation, at the expense of less time to evaluate delayed scan images.[5] Furthermore, 123I emits gamma radiation, while 131I emits gamma and beta radiation.[6]
Contraindications
The test is inappropriate for patients who are pregnant or breastfeeding.[4]
Additional images
References
- ^ [1] ThyCa: Thyroid Cancer Survivors' Association, Inc.,Radioactive Iodine (RAI).
- ^ Kwee, Sandi A.; Coel, Marc N.; Fitz-Patrick, David (2007). Eary, Janet F.; Brenner, Winfried, eds. "Iodine-131 Radiotherapy for Benign Thyroid Disease". Nuclear Medicine Therapy. CRC Press: 172. ISBN 978-0-8247-2876-2.
- ^ M. Sara Rosenthal. The Thyroid Sourcebook. McGraw-Hill, 2008. Page 140.
- ^ a b WebMD article on RAIU test.
- ^ Ain, Kenneth; Rosenthal, M. Sara (2010-08-19). The Complete Thyroid Book, Second Edition. McGraw-Hill Professional. pp. 57–. ISBN 978-0-07-174348-8. Retrieved 18 July 2011.
- ^ Pilling, Gwen (1999-06-24). Salters higher chemistry. Heinemann. pp. 132–. ISBN 978-0-435-63098-0. Retrieved 18 July 2011.
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Surgery involving the endocrine system (ICD-9-CM V3 06–07, ICD-10-PCS 0G)
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| Pancreas |
- Islet cell transplantation
- see also digestive system procedures
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| Pituitary |
- Hypophysectomy
- Transsphenoidal surgery
- Combined rapid anterior pituitary evaluation panel
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| Thyroid |
- Thyroidectomy
- Parathyroidectomy
- Tests
- Radioactive iodine uptake test
- Sestamibi parathyroid scan
- TRH stimulation test
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| Adrenal gland |
- Adrenalectomy
- Tests
- Dexamethasone suppression test
- ACTH stimulation test
- Captopril suppression test
- Fluid deprivation test
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| Pineal gland |
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| General hormone therapy |
- In menopause
- In oncology
- For transgender
- female-to-male
- male-to-female
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Medical imaging (ICD-9-CM V3 87–88, ICD-10-PCS B, CPT 70010–79999)
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X-ray/
medical radiography/
Industrial radiography |
| 2D |
| Medical: |
- Pneumoencephalography
- Dental radiography
- Sialography
- Myelography
- CXR
- AXR
- KUB
- DXA/DXR
- Upper gastrointestinal series/Small-bowel follow-through/Lower gastrointestinal series
- Cholangiography/Cholecystography
- Mammography
- Pyelogram
- Cystography
- Arthrogram
- Hysterosalpingography
- Skeletal survey
- Angiography
- Angiocardiography
- Aortography
- Venography
- Lymphogram
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| Industrial: |
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| 3D / XCT |
| Medical: |
- CT pulmonary angiogram
- Computed tomography of the heart
- Computed tomography of the abdomen and pelvis
- CT angiography
- Computed tomography of the head
- Quantitative computed tomography
- Spiral computed tomography
- High resolution CT
- Whole body imaging
- X-ray microtomography
- Electron beam tomography
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| Industrial: |
- Industrial computed tomography
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| Other |
- Fluoroscopy
- X-ray motion analysis
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| MRI |
- MRI of the brain
- MR neurography
- Cardiac MRI/Cardiac MRI perfusion
- MR angiography
- MR cholangiopancreatography
- Breast MRI
- Functional MRI
- Diffusion MRI
- Synthetic MRI
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| Ultrasound |
- Echocardiography
- Doppler echocardiography
- Intravascular
- Gynecologic
- Obstetric
- Echoencephalography
- Transcranial Doppler
- Abdominal ultrasonography
- Transrectal
- Breast ultrasound
- Transscrotal ultrasound
- Carotid ultrasonography
- Contrast-enhanced
- 3D ultrasound
- Endoscopic ultrasound
- Emergency ultrasound
- FAST
- Pre-hospital ultrasound
- Duplex
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| Radionuclide |
| 2D / scintigraphy |
- Cholescintigraphy
- Scintimammography
- Ventilation/perfusion scan
- Radionuclide ventriculography
- Radionuclide angiography
- Radioisotope renography
- Sestamibi parathyroid scintigraphy
- Radioactive iodine uptake test
- Bone scintigraphy
- Immunoscintigraphy
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| full body: |
- Octreotide scan
- Gallium 67 scan
- Indium-111 WBC scan
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| 3D / ECT |
- SPECT
- gamma ray: Myocardial perfusion imaging
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| PET (positron): |
- Brain PET
- Cardiac PET
- PET mammography
- PET-CT
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| Optical laser |
- Optical tomography
- Optical coherence tomography
- Confocal microscopy
- Endomicroscopy
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| Thermography |
- non-contact thermography
- contact thermography
- dynamic angiothermography
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English Journal
- Predictive factors of outcomes in personalized radioactive iodine ((131)I) treatment for Graves' disease.
- Liu M1, Jing D, Hu J, Yin S.
- The American journal of the medical sciences.Am J Med Sci.2014 Oct;348(4):288-93. doi: 10.1097/MAJ.0000000000000288.
- BACKGROUND: Graves' disease (GD) is the most common cause of hyperthyroidism in iodine-sufficient areas. Radioactive iodine I treatment (RIT), as the 1st therapeutic option, is widely accepted by doctors and patients. The aim of this study was to investigate factors influencing the success rate of c
- PMID 24805788
- THERAPY OF ENDOCRINE DISEASE: Recombinant human TSH and radioactive therapy in the management of benign multinodular goiter.
- Graf H.
- European journal of endocrinology / European Federation of Endocrine Societies.Eur J Endocrinol.2014 Sep 4. pii: EJE-14-0608. [Epub ahead of print]
- Multinodular goiter (MNG) is a very common thy¬roid disorder associated with diverse goitrogenic factors, the most important being iodine deficiency. The clinical presentation of a patient with MNG can vary from a completely asymptomatic goiter to a life-threatening disease due to upper airway comp
- PMID 25189867
- Comparison of clinical outcome after a fixed dose versus dosimetry-based radioiodine treatment of Graves' disease: Results of a randomized controlled trial in Indian population.
- Jaiswal AK1, Bal C1, Damle NA1, Ballal S1, Goswami R2, Hari S3, Kumar P1.
- Indian journal of endocrinology and metabolism.Indian J Endocrinol Metab.2014 Sep;18(5):648-54. doi: 10.4103/2230-8210.139222.
- OBJECTIVE: Two approaches are used to treat Graves' disease with radioiodine ((131)I)-the fixed dose approach and the other based on dosimetry. A prospective study was performed to compare the results of these two approaches in a randomized patient population, as such study is lacking in the Indian
- PMID 25285281
Japanese Journal
- Inhibitory effect of low-dose inorganic iodine on thyroidal radioactive iodine uptake in healthy Japanese adults
- Inhibitory effect of low-dose inorganic iodine on thyroidal radioactive iodine uptake in healthy Japanese adults
- Prediction of late (24-hour) radioactive iodine uptake using early (3-hour) uptake values in Japanese patients with Graves' disease
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