1
|
A comparison of conventional and diffusion-weighted magnetic resonance imaging in the diagnosis of sialadenitis and pleomorphic adenoma. Oral Surg Oral Med Oral Pathol Oral Radiol 2018; 127:451-457. [PMID: 30497909 DOI: 10.1016/j.oooo.2018.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 10/02/2018] [Accepted: 10/12/2018] [Indexed: 11/20/2022]
Abstract
OBJECTIVES The aim of this study was to compare the efficacy of conventional magnetic resonance imaging (MRI) and diffusion-weighted imaging (DWI) in correctly identifying the presence of disease in the major salivary glands and correctly distinguish sialadenitis from pleomorphic adenoma. STUDY DESIGN Twenty-one patients diagnosed with unilateral sialadenitis or pleomorphic adenoma were selected. The nonaffected contralateral glands were also analyzed. T1- and T2-weighted MRI and DWI were obtained using spin-echo pulse sequences with a 1.5 Tesla MRI device. The diagnostic performance of 3 observers was evaluated for detection of salivary gland alterations and differentiation between sialadenitis and pleomorphic adenoma based on evaluation of MRI in comparison with DWI. RESULTS Intra-and interobserver reliability ranged from 0.86 to 0.94. DWI demonstrated greater sensitivity and accuracy values compared with MRI for both detection of disease and differentiation of sialadenitis from pleomorphic adenoma, with specificity values that were greater than or equal to those of MRI. DWI yielded significantly higher diagnostic odds ratios compared with MRI for both identification of disease and differentiation between lesions. CONCLUSIONS DWI demonstrated better diagnostic performance in the detection of alterations in the salivary glands and in differentiating between sialadenitis and pleomorphic adenoma compared with conventional T1 and T2-weighted MRI.
Collapse
|
2
|
Andreu-Arasa VC, Chapman MN, Kuno H, Fujita A, Sakai O. Craniofacial Manifestations of Systemic Disorders: CT and MR Imaging Findings and Imaging Approach. Radiographics 2018; 38:890-911. [PMID: 29624481 DOI: 10.1148/rg.2018170145] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Many systemic diseases or conditions can affect the maxillofacial bones; however, they are often overlooked or incidentally found at routine brain or head and neck imaging performed for other reasons. Early identification of some conditions may significantly affect patient care and alter outcomes. Early recognition of nonneoplastic hematologic disorders, such as thalassemia and sickle cell disease, may help initiate earlier treatment and prevent serious complications. The management of neoplastic diseases such as lymphoma, leukemia, or Langerhans cell histiocytosis may be different if diagnosed early, and metastases to the maxillofacial bones may be the first manifestation of an otherwise occult neoplasm. Endocrinologic and metabolic disorders also may manifest with maxillofacial conditions. Earlier recognition of osteoporosis may alter treatment and prevent complications such as insufficiency fractures, and identification of acromegaly may lead to surgical treatment if there is an underlying growth hormone-producing adenoma. Bone dysplasias sometimes are associated with skull base foraminal narrowing and subsequent involvement of the cranial nerves. Inflammatory processes such as rheumatoid arthritis and sarcoidosis may affect the maxillofacial bones, skull base, and temporomandibular joints. Radiologists should be familiar with the maxillofacial computed tomographic and magnetic resonance imaging findings of common systemic disorders because these may be the first manifestations of an otherwise unrevealed systemic process with potential for serious complications. Online supplemental material is available for this article. ©RSNA, 2018.
Collapse
Affiliation(s)
- V Carlota Andreu-Arasa
- From the Departments of Radiology (V.C.A.A., M.N.C., H.K., A.F., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston University Medical Center, Boston University School of Medicine, 820 Harrison Ave, 3rd Floor, Boston, MA 02118
| | - Margaret N Chapman
- From the Departments of Radiology (V.C.A.A., M.N.C., H.K., A.F., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston University Medical Center, Boston University School of Medicine, 820 Harrison Ave, 3rd Floor, Boston, MA 02118
| | - Hirofumi Kuno
- From the Departments of Radiology (V.C.A.A., M.N.C., H.K., A.F., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston University Medical Center, Boston University School of Medicine, 820 Harrison Ave, 3rd Floor, Boston, MA 02118
| | - Akifumi Fujita
- From the Departments of Radiology (V.C.A.A., M.N.C., H.K., A.F., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston University Medical Center, Boston University School of Medicine, 820 Harrison Ave, 3rd Floor, Boston, MA 02118
| | - Osamu Sakai
- From the Departments of Radiology (V.C.A.A., M.N.C., H.K., A.F., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston University Medical Center, Boston University School of Medicine, 820 Harrison Ave, 3rd Floor, Boston, MA 02118
| |
Collapse
|
3
|
Watanabe M, Buch K, Fujita A, Jara H, Qureshi MM, Sakai O. Quantitative MR imaging of intra-orbital structures: Tissue-specific measurements and age dependency compared to extra-orbital structures using multispectral quantitative MR imaging. Orbit 2017; 36:189-196. [PMID: 28436752 DOI: 10.1080/01676830.2017.1310254] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The orbit can be affected by unique pathologic conditions and often requires MRI evaluation. The purpose of this study was to investigate the age-related changes in multiple intra-orbital structures using quantitative MRI (qMRI). Thirty-eight subjects (20 males, 18 females; ages 0.5-87 years) underwent MRI with a mixed turbo spin echo sequence. T1 and T2 measurements were obtained within ROI in 6 intra-orbital structures (medial and lateral rectus muscles, medial and lateral retrobulbar fat, lacrimal gland, and optic nerve), and compared with those of corresponding extra-orbital structures (masseter muscle, subcutaneous cheek fat, buccal fat, parotid gland, and frontal white matter). Statistical analyses were performed using Pearson's correlation coefficients. T1 and T2 values of the extra-ocular muscles increased with age, with higher T1 and T2 values compared to the masseter muscles. Retrobulbar fat showed significant age-associated increases in T1 values in the lateral side and in T2 values in both sides. T1 and T2 values in the lacrimal gland increased with age, while the parotid gland showed an age-associated increase in T2 values and decrease in T1 values. Optic nerves demonstrated age-related changes, similar to that of frontal white matter; rapid decreases with age in T1 and T2 times in early stages of life, and slight increases in T1 and T2 times later in life. Intra-orbital structures demonstrated specific qMRI measurements and aging patterns, which were different from extra-orbital structures. Location-specific age-related changes of intra-orbital structures should be considered in the qMRI assessment of the orbital pathology.
Collapse
Affiliation(s)
- Memi Watanabe
- a Department of Radiology, Boston Medical Center , Boston University School of Medicine , Boston , Massachusetts , USA
| | - Karen Buch
- a Department of Radiology, Boston Medical Center , Boston University School of Medicine , Boston , Massachusetts , USA
| | - Akifumi Fujita
- a Department of Radiology, Boston Medical Center , Boston University School of Medicine , Boston , Massachusetts , USA
| | - Hernán Jara
- a Department of Radiology, Boston Medical Center , Boston University School of Medicine , Boston , Massachusetts , USA
| | - Muhammad Mustafa Qureshi
- a Department of Radiology, Boston Medical Center , Boston University School of Medicine , Boston , Massachusetts , USA
- b Department of Radiation Oncology , Boston Medical Center, Boston University School of Medicine , Boston , Massachusetts , USA
| | - Osamu Sakai
- a Department of Radiology, Boston Medical Center , Boston University School of Medicine , Boston , Massachusetts , USA
- b Department of Radiation Oncology , Boston Medical Center, Boston University School of Medicine , Boston , Massachusetts , USA
- c Department of Otolaryngology - Head and Neck Surgery , Boston Medical Center, Boston University School of Medicine , Boston , Massachusetts , USA
| |
Collapse
|
4
|
Kuno H, Jara H, Buch K, Qureshi MM, Chapman MN, Sakai O. Global and Regional Brain Assessment with Quantitative MR Imaging in Patients with Prior Exposure to Linear Gadolinium-based Contrast Agents. Radiology 2017; 283:195-204. [DOI: 10.1148/radiol.2016160674] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hirofumi Kuno
- From the Departments of Radiology (H.K., H.J., K.B., M.M.Q., M.N.C., O.S.), Radiation Oncology (M.M.Q., O.S.), and Otolaryngology—Head and Neck Surgery (O.S.), Boston Medical Center, Boston University School of Medicine, FGH Building, 3rd Floor, 820 Harrison Ave, Boston, MA 02118
| | - Hernán Jara
- From the Departments of Radiology (H.K., H.J., K.B., M.M.Q., M.N.C., O.S.), Radiation Oncology (M.M.Q., O.S.), and Otolaryngology—Head and Neck Surgery (O.S.), Boston Medical Center, Boston University School of Medicine, FGH Building, 3rd Floor, 820 Harrison Ave, Boston, MA 02118
| | - Karen Buch
- From the Departments of Radiology (H.K., H.J., K.B., M.M.Q., M.N.C., O.S.), Radiation Oncology (M.M.Q., O.S.), and Otolaryngology—Head and Neck Surgery (O.S.), Boston Medical Center, Boston University School of Medicine, FGH Building, 3rd Floor, 820 Harrison Ave, Boston, MA 02118
| | - Muhammad Mustafa Qureshi
- From the Departments of Radiology (H.K., H.J., K.B., M.M.Q., M.N.C., O.S.), Radiation Oncology (M.M.Q., O.S.), and Otolaryngology—Head and Neck Surgery (O.S.), Boston Medical Center, Boston University School of Medicine, FGH Building, 3rd Floor, 820 Harrison Ave, Boston, MA 02118
| | - Margaret N. Chapman
- From the Departments of Radiology (H.K., H.J., K.B., M.M.Q., M.N.C., O.S.), Radiation Oncology (M.M.Q., O.S.), and Otolaryngology—Head and Neck Surgery (O.S.), Boston Medical Center, Boston University School of Medicine, FGH Building, 3rd Floor, 820 Harrison Ave, Boston, MA 02118
| | - Osamu Sakai
- From the Departments of Radiology (H.K., H.J., K.B., M.M.Q., M.N.C., O.S.), Radiation Oncology (M.M.Q., O.S.), and Otolaryngology—Head and Neck Surgery (O.S.), Boston Medical Center, Boston University School of Medicine, FGH Building, 3rd Floor, 820 Harrison Ave, Boston, MA 02118
| |
Collapse
|
5
|
Watanabe M, Buch K, Fujita A, Christiansen CL, Jara H, Sakai O. MR relaxometry for the facial ageing assessment: the preliminary study of the age dependency in the MR relaxometry parameters within the facial soft tissue. Dentomaxillofac Radiol 2015; 44:20150047. [PMID: 25974063 DOI: 10.1259/dmfr.20150047] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To investigate the location-specific tissue properties and age-related changes of the facial fat and facial muscles using quantitative MRI (qMRI) analysis of longitudinal magnetization (T1) and transverse magnetization (T2) values. METHODS 38 subjects (20 males and 18 females, 0.5-87 years old) were imaged with a mixed turbo-spin echo sequence at 1.5 T. T1 and T2 measurements were obtained within regions of interest in six facial fat regions including the buccal fat and subcutaneous cheek fat, four eyelid fat regions (lateral upper, medial upper, lateral lower and medial lower) and five facial muscles including the orbicularis oculi, orbicularis oris, buccinator, zygomaticus major and masseter muscles bilaterally. RESULTS Within the zygomaticus major muscle, age-associated T1 decreases in females and T1 increases in males were observed in later life with an increase in T2 values with age. The orbicularis oculi muscles showed lower T1 and higher T2 values compared to the masseter, orbicularis oris and buccinator muscles, which demonstrated small age-related changes. The dramatic age-related changes were also observed in the eyelid fat regions, particularly within the lower eyelid fat; negative correlations with age in T1 values (p<0.0001 for age) and prominent positive correlation in T2 values in male subjects (p<0.0001 for male×age). Age-related changes were not observed in T2 values within the subcutaneous cheek fat. CONCLUSIONS This study demonstrates proof of concept using T1 and T2 values to assess age-related changes of the facial soft tissues, demonstrating tissue-specific qMRI measurements and non-uniform ageing patterns within different regions of facial soft tissues.
Collapse
Affiliation(s)
- M Watanabe
- 1 Department of Radiology, Boston Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - K Buch
- 1 Department of Radiology, Boston Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - A Fujita
- 1 Department of Radiology, Boston Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - C L Christiansen
- 2 Department of Health Policy and Management, Boston University School of Public Health, Boston, MA, USA
| | - H Jara
- 1 Department of Radiology, Boston Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - O Sakai
- 1 Department of Radiology, Boston Medical Center, Boston University School of Medicine, Boston, MA, USA.,3 Department of Otolaryngology-Head and Neck Surgery, Boston Medical Center, Boston University School of Medicine, Boston, MA, USA.,4 Department of Radiation Oncology, Boston Medical Center, Boston University School of Medicine, Boston, MA, USA
| |
Collapse
|
6
|
Quantitative Magnetic Resonance Imaging Analysis of the Lacrimal Gland in Sickle Cell Disease. J Comput Assist Tomogr 2014; 38:674-80. [DOI: 10.1097/rct.0000000000000104] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|