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Biomedical subjects

J D Ball

Publications and source records attributed to J D Ball.

28 records · Page 2Linked to original sources
PubMed1985

MMPI characteristics of borderline psychopathology in adolescent inpatients.

This study investigated MMPI characteristics of male and female adolescent inpatients with diagnoses of borderline personality disorder (n = 28) in contrast to adolescent inpatients receiving principal diagnoses of conduct disorder (n = 21), dysthymic disorder (n = 50), other personality disorders (n = 17), and other diagnoses (n = 30). The borderline group has significantly higher elevations than comparison groups on MMPI scales F, Hs, D, Pd, Pa, Pt, Sc, and Ma. A stepwise discriminant analysis resulted in 82.1% accuracy in correctly classifying borderline patients and 78.0% accuracy in identifying nonborderline patients. Findings are discussed in terms of potential uses and limitations in identifying borderline personality disorder with the MMPI.

Adolescent↗
PubMed1984

Relative lesion detection ability of Tc-99m HMDP and Tc-99m MDP: concise communication.

To compare the efficacy of Tc-99m HMDP and Tc-99m MDP to define skeletal lesions, 28 adult patients were examined in a double-blind, randomized, crossover study. Each patient was imaged with both agents over a period of 7-14 days. Both quantitative and qualitative evaluations were performed on the resulting images. Both agents detected the same number of skeletal lesions, and the number of lesions detected was the same whether the imaging was performed 2 or 4 hr after injection. Relative uptake of the tracer in the lesion relative to normal bone was also the same for both agents. Lesions were easier to see at 4 hr after injection than at 2 hr, presumably because soft-tissue levels were lower. Retention of tracer in bone compared with soft tissue was greater, and image quality was judged to be better, with Tc-99m HMDP than with Tc-99m MDP.

Adult↗
PubMed1980

Comparison of Tc-99m pyrosphosphate and Tc-99m hydroxymethylene diphosphonate in acute myocardial infarction: concise communication.

A clinical comparison between a new bone seeking radiopharmaceutical, Tc-99m hydroxymethylene diphosphonate (TcHMDP) and the standard agent, Tc-99m pyrophosphate (TcPPi), was performed in 18 patients with acute myocardial infarction. Each patient was imaged initially with either TcHMDP or TcPPi, and imaged 24 hr later with the other tracer. All 18 patients had images positive for acute myocardial infarction with TcPPi, whereas 16 of 18 patients (89%) had positive studies with TcHMDP. The TcPPi images were graded significantly superior to those obtained with TcHMDP in 61% of the patients, and they were equal in 33%. In only one patient (6%) was TcHMDP better. The results indicate that compared with TcHMDP, TcPPi not only has a superior sensitivity for acute myocardial infarction but also has a significantly increased intensity of uptake in positive areas. TcPPi remains the agent of choice for myocardial infarct imaging.

Acute Disease↗
PubMed1979

Radionuclide sinography: diagnosis of lateral sinus thrombosis by dynamic and static brain imaging.

Four patients with lateral sinus thrombosis were studied by radionuclide (RN) dynamic studies and RN static brain scans. Findings included: (a) abrupt termination of RN activity in the midportion of a lateral sinus ("stump sign"); (b) nonvisualization on dynamic, increased visualization on static images ipsilateral to a prominent sinus groove on a plain skull radiograph; and (c) increased activity on static images with nonfilling on angiography. RN demonstration of the "stump sign" is pathognomonic of lateral sinus occlusion; the latter two patterns require radiographic demonstration of an ipsilateral sinus groove or angiography for significance.

Adult↗
PubMed1979

Comparison of Tc-99m pyrophosphate and Tc-99m methylene diphosphonate in acute myocardial infarction: concise communication.

This study compared Tc-99m pyrophosphate (PPi) and Tc-99m methylene diphosphonate (MDP) for myocardial infarct imaging in 24 patients with diagnosed acute myocardial infarction. The radiopharmaceuticals were administered randomly and interpreted without knowledge of the sequence used. Twenty-three patients (96%) had positive Tc-99m PPi scintigrams, but only 17 (71%) had a positive Tc-99m MDP study (P less than 0.05). In addition, a comparison of the relative intensity with each agent revealed greater intensity with Tc-99m in 21 cases, equal intensity in two cases, and less intensity in only one case (p less than 0.001). These findings support the superiority of Tc-99m PPi as the agent of choice for myocardial scintigraphy in acute infarction.

Acute Disease↗
PubMed1979

Nuclear imaging in urology.

Over the past 10 years nuclear renal imaging has proved to be a valuable diagnostic tool. The information derived from such studies must be correlated with all other imaging procedures now available, i.e., ultrasound and computed tomography. Prior to performing a study, the physician should focus carefully on what information is desired and whether or not it can be acquired. Once that is done, the use of these procedures in urology is extremely helpful and their aid in a given instance is limited only by the creative mind of the physicianuser.

Bone Diseases↗
PubMed1979

Implications of developmental theories for counseling adolescents in groups.

This paper presents a rationale for the use of group techniques in counseling adolescents, based on selected developmental theories. In addition, it delineates specific practical implications and guidelines for group counselors to consider. Specifically, group selection, group size and composition, and topical content are discussed as they relate to developmental issues during adolescence.

Adolescent↗