The usefulness of intraoral ultrasonography in the evaluation of oral cancer

Shintani, Satoru; Yoshihama, Yasuto; Ueyama, Yoshiya; Terakado, Nagaaki; Kamei, Sotaro; Fijimoto, Yasushi; Hasegawa, Yasuhisa; Matsuura, Hidehiro; Matsumura, Tomohiro

doi:10.1054/ijom.2000.0035

Cited by 124 publications

(121 citation statements)

References 15 publications

Supporting

Mentioning

109

Contrasting

Order By: Relevance

“…US measurement is more reliable than MRI for the measurement of tumour thickness, especially in superficial lesions. 20,21 This correlate with our work by use ultrasound as preoperative indicator for measuring the tumor thickness in oral cavity cancers.…”

Section: 17supporting

confidence: 78%

The relationship between primary tumour thicknesses in cancers of the oral cavity to subsequent lymph node metastasis

et al. 2017

View full text Add to dashboard Cite

Background: Elective dissection of cervical lymph nodes in oral cavity cancers gives very precious data on its pathological state, judge for adjuvant therapy requirement plus its therapeutic effect but it has its morbidities that cannot be condoned. Tumor thickness (TT) in oral cavity cancers show an increasing value to be one of the most important and reliable factors that have a great relationship to regional node involvement.Methods: Forty-three patients with T1, T2 oral cavity squamous cell carcinoma with clinically and radiologically negative cervical L.Ns underwent elective neck dissection and the relation between the tumor thickness and the nodal metastasis was monitored. Tumor thickness was estimated preoperatively by using the intra-oral ultrasound and confirmed by histopathology postoperatively.Results: Only 12 out of 43 neck dissections (27.9%) showed positive L.Ns metastasis of primary tumor. The excised number of L.Ns ranged from 15 to 31 with mean±SD (21.58±3.59) L.Ns. The (TT) ranged from 1.4 mm to 7.8 mm. Our statistical results showed that there is a cutoff point which was 4 mm where (TT) > 4 mm showed significant results with histologically found positive cervical node metastasis compared to (TT) ≤4 mm specimens.Conclusions: Relationship of tumor thickness to lymph node metastasis was found to be significant as shown by this study. Our results clearly demonstrate that conservative elective neck dissection is indicated in patients with stage I/II oral cavity carcinoma whose tumors are > 4 mm in thickness as they mostly have latent metastasis.

show abstract

Section: 17supporting

confidence: 78%

The relationship between primary tumour thicknesses in cancers of the oral cavity to subsequent lymph node metastasis

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Intraoral sonography has been used with high accuracy to predict the pathologic tumor thickness in patients with oral tongue cancer (17,(19)(20)(21), and there may be a role for the use of this procedure in patients with OCC and dental artifacts on the conventional images. However, the following are some limitations with intraoral sonography.…”

Section: Precise Information About the Extent Of Tumors Is Critical Fmentioning

confidence: 99%

Tumor Volume Assessment by¹⁸F-FDG PET/CT in Patients with Oral Cavity Cancer with Dental Artifacts on CT or MR Images

Baek¹,

Chung²,

Son³

et al. 2008

J Nucl Med

View full text Add to dashboard Cite

The purpose of this study was to investigate the clinical usefulness of PET/CT or CT-attenuated PET in the evaluation of patients with oral cavity cancer (OCC) in whom dental artifacts distorted the conventional CT or MR images of the oral cavity. Methods: A PET/CT scan, in addition to a CT or MRI scan, was performed in 69 patients with OCC who had dentures or dental implants. A total of 64 PET/CT, 64 CT, and 27 MR images were analyzed including images from scans performed on 40 patients with OCC without dental artifacts on the conventional images; these were used for comparison. The CT-attenuated PET scan for the detection of primary tumors was compared with the CT or MRI scan. We also evaluated the correlation between the PET/CT volume and the pathologic volume using a regression analysis. In addition, subgroup analysis was performed to determine what proportion of subjects benefited most from the PET/CT. Results: CT-attenuated PET detected more primary tumors than did CT in patients with OCC with dental artifacts (95.3% vs. 75.0%, respectively; P 5 0.0016). PET/CT volume with a standardized uptake value (SUV) cutoff point of 3.5 predicted the pathologic volume more accurately than did the other cutoff points in patients with OCC with or without artifacts. After comparing pathologic volume and PET/CT SUV 3.5 volume, the following regression equation was developed: log (pathologic volume) 5 0.6 · log (PET/CT SUV 3.5 volume) 1 1.3 (R 2 5 0.42, P , 0.0001). Subgroup analysis showed that the prediction of the pathologic volume from the PET/CT images was more reliable for tumors that were more than 2 cm in depth (R 2 5 0.72). Conclusion: For patients with OCC with dental artifacts on the conventional imaging, PET/CT could provide useful clinical information about the primary tumors, particularly in cases with advanced tumors.

show abstract

“…The advantage of intraoral ultrasonography is that it is rapid and easily repeated, and it allows the operator/observer to distinguish the tumor mass from the surrounding tissue. Shintani et al 71 observed that it was more reliable than CT and MRI when dealing with very thin lesions (as thin as 1 mm). It must, however, be pointed out that it can be quite uncomfortable for patients, resulting in pain and gag reflex (although not severe enough to limit the examination).…”

mentioning

confidence: 99%

Importance of tumor thickness and depth of invasion in nodal involvement and prognosis of oral squamous cell carcinoma: A review of the literature

2005

View full text Add to dashboard Cite

show abstract

The usefulness of intraoral ultrasonography in the evaluation of oral cancer

Cited by 124 publications

References 15 publications

The relationship between primary tumour thicknesses in cancers of the oral cavity to subsequent lymph node metastasis

The relationship between primary tumour thicknesses in cancers of the oral cavity to subsequent lymph node metastasis

Tumor Volume Assessment by¹⁸F-FDG PET/CT in Patients with Oral Cavity Cancer with Dental Artifacts on CT or MR Images

Importance of tumor thickness and depth of invasion in nodal involvement and prognosis of oral squamous cell carcinoma: A review of the literature

Contact Info

Product

Resources

About

The usefulness of intraoral ultrasonography in the evaluation of oral cancer

Cited by 124 publications

References 15 publications

The relationship between primary tumour thicknesses in cancers of the oral cavity to subsequent lymph node metastasis

The relationship between primary tumour thicknesses in cancers of the oral cavity to subsequent lymph node metastasis

Tumor Volume Assessment by18F-FDG PET/CT in Patients with Oral Cavity Cancer with Dental Artifacts on CT or MR Images

Importance of tumor thickness and depth of invasion in nodal involvement and prognosis of oral squamous cell carcinoma: A review of the literature

Contact Info

Product

Resources

About

Tumor Volume Assessment by¹⁸F-FDG PET/CT in Patients with Oral Cavity Cancer with Dental Artifacts on CT or MR Images